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{{DISPLAYTITLE:Rolex 16570 Explorer II}}
{{DISPLAYTITLE:Rolex Explorer II 16570}}
{{#seo:
{{#seo:
|title=Rolex Explorer II 16570 (1989–2011) — Production & Dial Guide | BezelBase
|title=Rolex Explorer II 16570 (1989–2011) | Rolexopedia
|description=The Rolex Explorer II 16570 — the long-run five-digit Explorer II from 1989 to 2011, polar white or black dial, caliber 3185 then 3186, dial generations Mark I through Mark V, and the bridge between the 16550 and the modern 216570.
|description=Collector guide to the Rolex Explorer II 16570: calibre 3185 and 3186, lume and dial changes, bracelet fittings and documented special examples.
|keywords=Rolex, 16570, Explorer II, polar, black dial, caliber 3185, caliber 3186, Mark dials, reference guide
|keywords=Rolex, Explorer II, 16570, calibre 3185, calibre 3186, Polar, SRR
|image=Ref 16570 hero.webp
|image=Ref 16570 hero.webp
|image_alt=Black-dial 16570 hero
|image_alt=Black dial Rolex Explorer II 16570 with fixed 24-hour bezel
|type=Article
|type=Article
|og_type=article
|og_type=article
|published_time=2026-04-19T22:48:15Z
|modified_time=2026-06-29T01:16:40Z
|robots=index,follow,max-image-preview:large
|robots=index,follow,max-image-preview:large
}}
}}


<small>[[Reference:explorer-ii|Explorer II]] -> '''16570'''</small>
<small>[[Reference:explorer-ii|Explorer II]] → '''16570'''</small>


[[File:Ref 16570 hero.webp|thumb|right|250px|alt=Black-dial 16570 hero|Black-dial 16570 hero]]
<div class="rp-lead">
[[File:Ref 16570 hero.webp|thumb|center|640px|alt=Black dial Rolex Explorer II 16570 with fixed 24-hour bezel|Rolex Explorer II 16570.]]
</div>


The 16570 is the long-run modern Explorer II. Produced from 1989 through roughly 2011, it replaced the short-run 16550 and held the reference slot for twenty-two years before the 42mm 216570 took over. Two dial options, matte black and a crisp white called Polar. The case is 40mm steel with a fixed 24-hour bezel, sapphire crystal with Cyclops, and a true GMT movement with independent local-hour setting. Four distinguishable production versions split it by case, dial-printing, lume, and caliber. The 16570 is a slow-moving watch in a Rolex line that otherwise prefers sudden breaks, and that slow drift is what gives it the internal map collectors now rely on.
Rolex introduced the Explorer II 16570 in 1989. It kept the 40mm steel case and fixed 24-hour bezel of the 16550, with calibre 3185 adding an independently adjustable local-hour hand. Rolex replaced it with the 42mm 216570 in 2011. Over the 16570’s long run, lume markings, bracelet fittings, lug holes, the rehaut and movement changed at different times. The white dial is commonly called Polar by collectors.
 
The 16570 is also the point where the Explorer II stops being a niche complication and becomes a real collector reference. The reference is modern enough that clean examples still surface and old enough that the early-run tritium watches have started behaving like vintage. The black dial reads as a GMT on a fixed bezel; the Polar reads as nothing else in the Rolex line.
 
<span id="core-facts"></span>


==Core facts==
==Core facts==


{| class="wikitable"
{| class="wikitable rp-facts"
|-
|-
! detail
! detail
Line 31: Line 27:
|-
|-
| reference
| reference
| 16570
| <code>16570</code>
|-
|-
| family
| family
Line 37: Line 33:
|-
|-
| production
| production
| approximately 1989 to 2011; some editorial sources round the end to 2010
| 1989–2011 in most histories; Monochrome ends the run in 2010
|-
|-
| movement
| movement
| caliber 3185 through late 2006; caliber 3186 through end of production
| calibre 3185, then calibre 3186 in later examples
|-
|-
| case
| case
| 40mm steel Oyster, approximately 12.2mm thick, 47mm lug-to-lug
| stainless steel Oyster case, 40mm
|-
|-
| crystal
| crystal
| sapphire with Cyclops over the date
| sapphire, with Cyclops date magnifier
|-
|-
| water resistance
| water resistance
Line 52: Line 48:
|-
|-
| bezel
| bezel
| fixed 24-hour, stainless steel with engraved black markings
| fixed steel bezel with engraved 24-hour scale
|-
|-
| lume eras
| dials
| tritium <code>SWISS — T<25</code> to about 1998; Luminova SWISS alone 1998–1999; Super-LumiNova SWISS MADE from 1999 on
| glossy black or white Polar; dial finish and lume markings vary by period
|-
|-
| dial
| lume
| matte black with white-gold applied indices, or white "Polar" with applied indices painted black-outlined
| tritium, then LumiNova, then Super-LumiNova in published accounts
|-
|-
| bracelet
| bracelet
| Oyster, reference 78360 early, 78790 later; Oysterlock with Fliplock extension
| Oyster; bracelet and end-link fittings changed during production
|-
| rehaut
| plain until mid-2000s; laser-engraved ROLEX ROLEX ROLEX on late Z-serial watches onward
|-
|-
| predecessor
| predecessor
| 16550
| Explorer II 16550
|-
|-
| successor
| successor
| 216570 (42mm)
| Explorer II 216570
|}
|}


==Where it sits in the line==
==Where it sits in the line==


The 16570 takes a short-run reference, the 16550 produced 1985–1989, and scales it to a full production cycle. The 16550 did the heavy lifting on architecture: sapphire crystal, caliber 3085, a true independent-hour GMT function replacing the earlier 1655 Freccione logic. The 16570 inherits that work, upgrades the movement to caliber 3185, and runs for twenty-two years with incremental change rather than another overhaul.
The 16570 retained the 16550’s overall layout and 40mm case. Its calibre 3185 lets the wearer move the local-hour hand in one-hour steps while the red 24-hour hand continues to show home time. The fixed bezel gives the watch a second-time-zone display; unlike a GMT-Master, it cannot be turned to read a third zone.


On the way out, the 16570 hands off to the 216570, which takes the Explorer II to 42mm, adds the orange 24-hour hand that nods back to the 1655, and moves to caliber 3187. The 42mm jump is the larger discontinuity. Collectors who prize the 16570 usually do so for the 40mm case and the less-prominent wrist presence that came with it.
The next reference, 216570, arrived in 2011 with a 42mm case, calibre 3187 and a larger orange 24-hour hand. That launch year overlaps the end dates assigned to the last 16570s.


==Production outline==
==Production outline==
[[File:Ref 16570 black-dial-2.webp|thumb|right|280px|alt=Mid-run black-dial 16570|Mid-run black-dial 16570]]


Some collector guides group the 16570 into four versions. Lume text, bracelet fittings, lug holes, rehaut engraving and movement each changed on a different schedule, so the features are more useful as separate dating clues than as a single serial-band formula.


The 16570 divides cleanly into four internal versions. The boundaries are approximate, since lume, dial, and case changes do not all line up with the same serial band, but the map works in practice.
Monochrome describes the lume change as mid-1990s; Jorg Weppelink dates LumiNova and the <code>SWISS</code>-only dial to 1998, followed by Super-LumiNova and <code>SWISS MADE</code> in 1999. Read these as approximate bands rather than exact cutoffs. Earlier tritium dials print <code>SWISS – T < 25</code> at six.


{| class="wikitable"
Rolex phased out drilled lugs and folded end links during roughly 2000–2003. Watches can combine solid end links with drilled lugs. Rehaut engraving appeared later, around the mid-2000s. The calibre 3186 also arrived late in the run, with sources placing its 16570 introduction around 2006–2007. These changes overlap: Bonhams catalogued a circa-2006 3185 example with an engraved rehaut, while Time+Tide documented a 3186 example with a plain rehaut.
|-
! version
! rough period
! tells
|-
| V1
| 1989 to ~1997
| tritium lume (<code>SWISS — T<25</code>), drilled lugs, bracelet 78360 with hollow end links, plain rehaut
|-
| V2
| ~1998 to 1999
| short Swiss-only window; Luminova lume but dial still prints SWISS alone without MADE
|-
| V3
| 1999 to ~2005
| Super-LumiNova, SWISS MADE dial printing, bracelet 78790 with solid end links, drilled lugs phase out 2002–2003
|-
| V4
| ~2005 to 2011
| no-holes case, laser-engraved rehaut; caliber 3186 from late 2006
|}


The Swiss-only V2 window is the narrowest and the hardest to price cleanly. It covers roughly eighteen months in which Rolex switched lume compound from tritium to Luminova but had not yet updated the dial printing to the modern SWISS MADE format. The result is a dial that looks like a tritium watch at a glance but glows far brighter than tritium should. Estimates place the V2 share at about five percent of total 16570 production, though the precise count is not publicly documented.
Monochrome ends the run in 2010; Weppelink dates it through 2011. Christie's catalogued one case as circa 2011 and says it remained with an authorized retailer until 2019. The circa-2011 date describes that case; 2019 is when the retailer’s stock was sold.


The V3–V4 boundary carries two overlapping case and rehaut transitions that do not cut at the same serial. Drilled lug holes disappeared from the case sometime in 2002 or 2003, earlier than the laser-engraved rehaut that arrived in the mid-2000s. That makes it possible, and genuine, to see a mid-period 16570 with a no-holes case and a plain rehaut. Early V4 watches retain the plain rehaut and the caliber 3185. The Z-serial transitional band is the cleanest anchor for the rehaut and caliber 3186 changes, both of which landed in late 2006 on most documented examples.
[[File:Ref 16570 black-dial-2.webp|thumb|right|220px|alt=Mid-run black dial on an Explorer II 16570|Black dial, mid-run.]]


The end-of-production year is itself disputed. Some editorial histories and Sotheby's catalog descriptions place the last 16570 deliveries in 2010; others mark it at 2011. Both years sit inside the 216570 launch window, which opened at Baselworld 2011. The last 16570 watches ran through 2010 and into the first part of 2011 while the successor was introduced alongside.
==Movement notes==


==Movement notes==
Calibre 3185 powered the 16570 from launch. It has 31 jewels, runs at 28,800 vibrations per hour and lets the local-hour hand jump in one-hour steps. The date follows the local hour through midnight. Calibre 3186 appeared late in the reference’s run; it added a Parachrom hairspring and revised the setting train to reduce play in the 24-hour hand.


Caliber 3185 powered the 16570 for the majority of its run, from 1989 through late 2006. The 3185 is a 28,800 vph automatic with 31 jewels, roughly 50-hour power reserve, hacking seconds, and an independently-setting local hour hand. That independent hour is the complication that makes this a true GMT rather than the linked-hand system used on the earlier 1655. The hour hand is what the wearer repositions on arrival; the 24-hour hand keeps home time on the fixed bezel.
Published power-reserve figures for calibre 3185 differ. The cross-family Movement reference lists 48 hours, while Monochrome gives 50; the 3186 is listed at 50 hours. The literature places the 3186 change in the Explorer II around 2006–2007, rather than at a firm serial cutoff. A 3186 can appear without an engraved rehaut, and a 3185 can appear with one. The movement itself is the deciding evidence.


Caliber 3186 replaces 3185 late in the run, usually in the Z-serial period. The practical point is that late 16570s can carry the newer movement before every other late-case feature arrives, because Rolex phased the change in rather than flipping a switch. Distinguishing the two calibers from the dial side requires a known-3186 reference example to compare hand play against; the visual difference is small.
Some guides use movement-hand play while setting as an initial clue. Treat it as a screening check; servicing can affect the feel, and the movement should be identified directly when the distinction matters.


==Dial map==
==Dial map==
The 16570 is an internally-simple reference compared to a vintage Explorer, but its dial progression is denser than the two-colour summary suggests. Three variables shift during the run: lume compound, dial-printing signature, and mark-level typography. None of the three align perfectly with each other.


===Black dial===
===Black dial===
[[File:Ref 16570 black-dial-tritium.webp|thumb|right|280px|alt=Early tritium black dial|Early tritium black dial with SWISS - T<25 printing]]
The black dial is the default 16570. The useful split is not black versus white, but tritium, Swiss-only, and Super-LumiNova era details across the long run.
===Polar white dial===
[[File:Ref 16570 polar-dial.webp|thumb|right|280px|alt=Polar white dial 16570|Polar white dial 16570]]


The black dial remained glossy through the 16570 run. It has applied white-gold markers with luminous plots, white-gold hands and a red 24-hour hand. The six-o’clock line records the lume generation: <code>SWISS – T < 25</code> for tritium, <code>SWISS</code> on the short LumiNova transition, and <code>SWISS MADE</code> on later Super-LumiNova dials.


The Polar dial is what most collectors mean when they talk about a 16570. Matte white background, applied indices painted with a black enamel surround that holds the lume plot in a dark frame, white-gold baton hands with matching black outlines, a red 24-hour hand, red-and-black accent text. The surround printing is dense enough that a worn Polar dial looks different from a worn black dial at the same age. Lume plots age visibly against the black frame, and any dial rework shows in the printing around the applied index rather than in the dial colour itself.
Tritium plots can age to beige, yellow or brown. Collectors call heavily yellowed plots ''chicchi di mais'' (“corn kernels”), a nickname for the lume’s appearance. Assess originality from the dial, hands, movement and service history together.


The Polar is also the dial that carries the name into the rest of the line. Rolex did not use Polar officially; the label came from collectors reading the colour against the northern-expedition brief Rolex had written for the original 1655. It remains the best informal identifier in the Rolex lexicon for a white dial on a sport reference.
[[File:Ref 16570 black-dial-tritium.webp|thumb|right|220px|alt=Black Explorer II 16570 dial with tritium marking|Black dial with tritium-era text.]]


===Mark-level typography===
===White Polar dial===


Collector typography work on the 16570 has not converged into the clean Mark system that the 1016 or 5513 carry. What survives is a looser generation map tied to dial-printing vendor variation across the run. Early tritium examples show slightly thicker numerals and denser printing around the EXPLORER II text; late Super-LumiNova dials read more cleanly, with thinner strokes. A font-spacing sub-variant in the F-serial band (2003–2005) has been documented in collector forum analysis, with subtle alignment differences in the OFFICIALLY CERTIFIED CHRONOMETER line. None of the sub-variants carry a shared Mark nomenclature yet.
Collectors call the white dial Polar. Its applied markers and hands have black outlines around the luminous material. Early tritium examples can have a glossy white surface; later dials are commonly described as matte. The six-o’clock text and lume identify the period more reliably than dial finish alone.


===Service dials===
[[File:Ref 16570 polar-dial.webp|thumb|right|220px|alt=White Polar dial on the Explorer II 16570|White Polar dial.]]


Service-replacement dials are common enough on a twenty-two-year production to warrant caution. A tritium-era watch wearing a Super-LumiNova SWISS MADE dial has had the dial replaced, since a period-correct tritium dial cannot carry SWISS MADE printing. Fresh, even lume plots on a 1990s example are another signal. Rolex records the replacement quietly in service; the external check is the dial itself against the serial.
===Lume and dial printing===


==Case, bezel, crystal, and crown==
Collector guides sort 16570 dials by lume and printing. The sources used here describe those features without a shared reference-wide Mark-number system. When the dial text and case date seem apart, compare the hands, plots, movement and service papers before calling it a replacement.


===Case===
==Case, bezel, crystal and crown==


The case is 40mm steel, launching in alloy 316L with an undocumented transition to 904L somewhere in the run. Lug-to-lug runs about 47mm; thickness sits at about 12.2mm. The case is thinner and less substantial than the later 216570, which is part of why the 40mm 16570 still wears smaller than its specs suggest.
The stainless-steel Oyster case measures 40mm across. Weppelink reports roughly 47mm lug-to-lug and 12.2mm thick; those are editorial measurements, not a separate factory cutoff. The screw-down Twinlock crown, crown guards, sapphire crystal and Cyclops date carry over across the run. Rolex rated the watch to 100m.


Drilled lug holes are the first case variable. Early watches have them. The no-holes case arrives in the 2002–2003 window and persists through the end of production. A drilled-lug 16570 signals V1 through mid-V3; a no-holes case signals late V3 through V4. The transition is not a sharp cut but it is consistent enough to use as a dating anchor.
The steel bezel is fixed and radially brushed, with an engraved 24-hour scale. Its markings and font changed from the 16550, but the Explorer II’s bezel remained fixed throughout the 16570 run. Drilled lug holes disappeared in a phased transition around 2000–2003. The engraved rehaut arrived later and should be read as a separate change.


===Bezel===
==Bracelets, clasp and packaging==


The bezel is fixed, non-rotating, and machined from stainless steel with black-filled engraved 24-hour markings. That construction is what distinguishes the Explorer II visually from the GMT-Master at a distance. The aluminum rotating bezel of the GMT-Master is replaced by a solid steel ring that reads as a brushed-and-engraved surface rather than a printed insert. The steel does not fade and does not accept the kind of patina a GMT-Master Pepsi will develop, and the engravings wear shallowly at most, giving the bezel a largely invariant look across the run.
Beyond the Dial identifies reference 78360 on earlier examples and 78790 later. Weppelink documents the folded-to-solid end-link change during the same broad transition as the lug-hole change. Examples with mixed features occur. The center links remain hollow on these bracelets; solid end links do not mean the whole bracelet is solid.


===Crystal===
Weppelink notes that pre-1998 examples can lack the later Fliplock extension. Bracelet, end-link and clasp details should be assessed on the bracelet itself. A clasp stamp dates the clasp or bracelet, not the watch head. Boxes and papers document an individual sale or delivery and should be assessed with that watch.
 
Sapphire with a Cyclops magnifier over the date window at three o'clock. The crystal is flat, not domed, consistent with other modern Rolex sport references. No anti-reflective coating on the outer surface.
 
===Crown===
 
Twinlock screw-down crown with crown guards, consistent with the 100m water resistance rating. The crown wears the standard Rolex coronet and the pair of dots that mark Twinlock. The crown tube diameter is 6mm.
 
===Rehaut===
 
Plain through most of production. The laser-engraved rehaut, carrying repeating ROLEX ROLEX ROLEX text around the circumference with the serial number engraved at six, appeared on the 16570 in the mid-2000s and is most consistently documented from the Z-serial band onward. That places the engraved-rehaut transition slightly before the caliber-3186 transition, leaving room for a small window of late Z-serial watches that carry the new rehaut and the older caliber.
 
==Bracelets, end links, clasps, and packaging==
 
===Bracelet===
 
Two bracelet references cover the run. The earliest 16570 examples ship on reference 78360, a twenty-millimetre Oyster with hollow-stamped end links coded 501B. The later standard is reference 78790 with solid-stamped end links, sometimes referenced with the suffix B, carrying the solid-end-link treatment Rolex rolled across the sport lines in the early-2000s period. The transition is not a single serial cutoff, and the community-maintained lists diverge on where the 78360 ends and the 78790 begins; the most commonly cited window runs through the late 1990s. Both bracelets carry the Oysterlock folding clasp with Fliplock diving extension.
 
Solid end links change the wrist feel more than the number suggests. The old hollow ends flex slightly against the case while the solid ends sit flush. The upgrade is the same one the GMT-Master II 16710 received across its own late run.
 
===Clasp===
 
Oysterlock with a flip-down Fliplock extension that adds roughly five millimetres of on-the-fly length for diving suits or swelling wrists. The Fliplock predates the micro-adjusting Glidelock that the six-digit sport references now carry, and the difference is real on the wrist. Fliplock is a binary in-or-out extension; Glidelock is continuous fine adjustment. Clasp dates stamped into the inner link date the bracelet only, not the watch head, per the standard clasp-code rule.
 
===Packaging===
 
Standard Rolex green box packaging of the 1990s and 2000s, with the COSC certificate, warranty card, booklets, and hang tags. The warranty card format shifted from the earlier green paper card to the white credit-card-style card in 2006. Full-set examples from the late run carry the newer card; older full sets carry the paper format. Neither card is a reference-defining data point on its own. It dates the delivery, not the watch's production position.


==Special branches==
==Special branches==
Line 190: Line 128:
===Swiss-only dial===
===Swiss-only dial===


The Swiss-only 16570 sits at the boundary between tritium and Super-LumiNova. Rolex switched lume compounds from tritium to Luminova in 1998 or early 1999 but did not update the dial-printing convention at the same time. For roughly eighteen months, 16570 dials left the factory with Luminova lume and the old SWISS printing rather than the modern SWISS MADE. The result is a dial that reads in photographs like a tritium watch but glows sharply when a light is taken off it: the bright, cold Luminova output rather than the warm, dimmer tritium afterglow.
“Swiss-only” is collector shorthand for transitional dials marked <code>SWISS</code> without <code>MADE</code>. Weppelink associates them with LumiNova around 1998, before <code>SWISS MADE</code> appears with Super-LumiNova in 1999. The available examples date the transition approximately; they do not establish a factory serial boundary or production count.


The Swiss-only is now a recognized collector sub-category on the 16570. Production estimates put the run at about five percent of the reference total, though Rolex does not disclose the figure. Surviving Swiss-only examples have anchored themselves in the market as a premium over both the late-tritium V1 and the early Super-LumiNova V3 that flanks them on each side.
===SRR watches===


===Chicchi di Mais===
Christie’s and Sotheby’s describe an SRR-marked run of 139 Explorer II 16570s, individually numbered and made for the Special Reconnaissance Regiment. Christie’s example Z667317 is number 113 of 139; its lot includes a Rolex certificate dated September 2007 and a guarantee dated October 2007 naming the regiment as purchaser. Sotheby’s catalogued Z506008 as number 27 of 139, circa 2007, also with calibre 3185. Together, the lots document the numbered run. Each watch still needs to be assessed from its own serial and components.


The Italian nickname chicchi di mais, for corn kernels, applies to tritium-era dials whose lume plots have yellowed heavily toward a deep mustard or amber. The condition is not a factory variant. It is ordinary tritium aging taken to its visible extreme, usually on watches that spent long periods in sunlight or humidity. Collectors specifically search for well-matched chicchi dials where all lume plots have aged evenly. Mismatched plots, where some are cream and others are deep yellow, usually indicate relumed hands or a replacement plot rather than a uniform aging pattern.
===Van Cleef & Arpels signature===


===SRR military===
Sotheby’s catalogued a circa-1995 white-dial 16570, case S781923, with the dial signed <code>Rolex</code> and <code>V.C.&A.</code> The accompanying chronometer certificate is dated 27 March 1995 and names Van Cleef & Arpels as the authorized jeweler. It is an individual retailer-signed watch within reference 16570.


A hundred-and-thirty-nine-piece limited run delivered through Rolex London in October 2007 with SRR engraved on the caseback. The SRR acronym is the reported provenance in the lot documentation, with the specific unit not publicly confirmed. The watches are otherwise standard 16570 specification: caliber 3185, black dial, Super-LumiNova lume, no-holes case, laser-engraved rehaut. The SRR crest is engraved on the caseback, and each piece is individually numbered. Auction-documented examples have appeared at Sotheby's and Bonhams over the last five years, with estimates in the 15–25 thousand CHF range.
==Auction record==


===Retailer double-signed dials===
Auction catalogues provide dated examples, not a production ledger. Their dates below remain attached to the individual watches.


A small number of 16570 watches carry a second signature below the Rolex coronet, left by retailers that handled the delivery and stamped the dial at Rolex's sufferance. A Sotheby's lot from 2024 carried a Van Cleef & Arpels double signature on a circa-1995 black-dial 16570. Double-signed sport-reference Rolexes from the 1990s are uncommon enough to appear at auction individually rather than in retail flow.
{| class="wikitable"
|-
! source example
! catalogue description
! what it documents
|-
| Sotheby’s, 1991, case X520153
| white dial, calibre 3185, 31 jewels, 40mm
| early individual example; catalogue estimate circa 1991
|-
| Sotheby’s, 2002, case Y353032
| white Polar dial, calibre 3185, 31 jewels, 40mm
| later white-dial example; catalogue estimate circa 2002
|-
| Bonhams, lot 118, circa 2006
| white dial, calibre 3185, engraved rehaut
| overlap between the rehaut and movement changes
|-
| Christie’s, SRR, case Z667317
| number 113 of 139; calibre 3185; certificate September 2007 and guarantee October 2007
| numbered military-issue example with dated documents
|-
| Sotheby’s, lot 642, SRR, case Z506008
| number 27 of 139; calibre 3185; circa 2007
| second catalogue record for the SRR count and specification
|-
| Sotheby’s, lot 109, circa 1995, case S781923
| white dial, calibre 3185; V.C.&A. signature and dated certificate
| retailer-signed example; certificate names Van Cleef & Arpels
|-
| Christie’s, circa 2011, case 232T6474
| Polar dial; catalogue says the watch remained retailer stock until 2019
| a late case estimate, distinct from its later sale date
|}


==Market and collector context==
==Related references==


The 16570 is the last 40mm Explorer II and the only 16000-series Explorer II with a full twenty-year production run. The reference covers the entire tritium-to-Super-LumiNova arc in a single number, and it is the last 40mm version Rolex produced before the 42mm step-up.
* [[Reference:1655|Explorer II 1655]]
* [[Reference:16550|Explorer II 16550]]
* [[Reference:216570|Explorer II 216570]]


The current secondary market reads the reference as a solid, slow-moving collector entry rather than a speculative asset. Clean full-set examples with the original bracelet and a consistent service history trade a few thousand dollars above no-set examples of the same version. Among sub-variants, the Polar dial trades at a consistent premium over the black dial across all four versions, and the Swiss-only sub-variant carries an additional premium of its own when dial, lume, and serial align convincingly. The SRR limited run is the most expensive sub-variant outside the double-signed retailer dials.
See also the [[Reference:explorer-ii|Explorer II family index]], [[Reference:Movements|Movement reference]], [[Reference:Bracelets|Bracelet and clasp guide]] and [[Reference:Serial-numbers|Serial numbers]].


The reference has not seen the kind of auction-level escalation that lifted the five-digit Submariner or Daytona vintage references over the last decade. Phillips catalog attention has run toward earlier Explorer II lots, with the 1655 carrying the lot essays, while Sotheby's and Bonhams carry the 16570 auction record. The 16570 still has market room as a watch that earned its reputation slowly and is only now drawing sustained collector attention as the earliest examples cross the thirty-year mark.
<gallery mode="packed" heights="180">
File:Ref 16570 hero.webp|Explorer II 16570, black dial
File:Ref 16570 black-dial-2.webp|Mid-run black dial
File:Ref 16570 black-dial-tritium.webp|Black dial with tritium-era text
File:Ref 16570 polar-dial.webp|White Polar dial
</gallery>


==Sources==
== Sources ==


* [https://monochrome-watches.com/history-rolex-explorer-ii-adventure-watch-gmt-1655-16550-16570-216570-226570-in-depth/ "In-Depth: The History of the Rolex Explorer II, The Ultimate Adventure Watch", Monochrome]
* [https://monochrome-watches.com/history-rolex-explorer-ii-adventure-watch-gmt-1655-16550-16570-216570-226570-in-depth/ Erik Slaven, "In-Depth: The History of the Rolex Explorer II, The Ultimate Adventure Watch", Monochrome, 2024-12-17]
* [https://monochrome-watches.com/rolex-explorer-ii-polar-16570-youngtimer-collector-review/ Brice Goulard, "Collector's Corner: Rolex Explorer II Polar 16570 — A Youngtimer Collector Review", Monochrome, 2022-04-29]
* [https://monochrome-watches.com/rolex-explorer-ii-polar-16570-youngtimer-collector-review/ Brice Goulard, "Collector's Corner: Rolex Explorer II Polar 16570 — A Youngtimer Collector Review", Monochrome, 2022-04-29]
* [https://www.fratellowatches.com/buying_guide_different_versions_rolex_explorer_ii_16570/ Jorg Weppelink, "Buyer's Guide: Rolex Explorer II Ref. 16570, All Variations", Fratello]
* [https://www.fratellowatches.com/buying_guide_different_versions_rolex_explorer_ii_16570/ Jorg Weppelink, "Buyer's Guide: Rolex Explorer II Ref. 16570, All Variations"]
* [https://www.fratellowatches.com/exploring-evergreens-the-rolex-explorer-ii-16570-black-dial/ Thomas van Straaten, "Exploring Evergreens: Black-Dial Rolex Explorer II 16570", Fratello]
* [https://www.fratellowatches.com/exploring-evergreens-the-rolex-explorer-ii-16570-black-dial/ Thomas van Straaten, "Exploring Evergreens: Black-Dial Rolex Explorer II 16570"]
* [https://timeandtidewatches.com/depth-future-classic-rolex-explorer-ii-ref-16570/ Bruce Duguay, "In-Depth: The Rolex Explorer II Ref. 16570 is a Future Classic", Time+Tide, 2018-03-19]
* [https://timeandtidewatches.com/depth-future-classic-rolex-explorer-ii-ref-16570/ Bruce Duguay, "In-Depth: The Rolex Explorer II Ref. 16570 is a Future Classic", Time+Tide, 2018-03-19]
* [https://www.sothebys.com/en/buy/auction/2021/important-watches-part-ii-2/srr-explorer-ii-ref-16570-limited-edition "SRR 16570 Limited Edition (139-piece), Important Watches II, 2021", Sotheby's, 2021-11-01]
* [https://www.sothebys.com/en/buy/auction/2021/important-watches-part-ii-2/srr-explorer-ii-ref-16570-limited-edition "SRR 16570 Limited Edition (139-piece), Important Watches II, 2021", Sotheby's, 2021-11-01]
* [https://www.christies.com/en/lot/lot-5674762 "16570 SRR, case Z667317, number 113 of 139", Christie’s]
* [https://www.sothebys.com/en/buy/auction/2024/important-watches/reference-16570-explorer-ii-retailed-by-van-cleef "16570 Explorer II Retailed by Van Cleef & Arpels, circa 1995", Sotheby's, 2024-06-01]
* [https://www.sothebys.com/en/buy/auction/2024/important-watches/reference-16570-explorer-ii-retailed-by-van-cleef "16570 Explorer II Retailed by Van Cleef & Arpels, circa 1995", Sotheby's, 2024-06-01]
* [https://www.sothebys.com/en/buy/auction/2022/important-watches-part-ii/explorer-ii-ref-16570-stainless-steel-dual-time "Explorer II Ref. 16570 Stainless Steel Dual Time, circa 1991", Sotheby's, 2022-01-01]
* [https://www.sothebys.com/en/buy/auction/2022/important-watches-part-ii/explorer-ii-ref-16570-stainless-steel-dual-time "Explorer II Ref. 16570 Stainless Steel Dual Time, circa 1991", Sotheby's, 2022-01-01]
Line 227: Line 206:
* [https://www.bonhams.com/auction/28036/lot/10/ "Explorer II SRR 16570 one of 139 purchased October 2007", Bonhams]
* [https://www.bonhams.com/auction/28036/lot/10/ "Explorer II SRR 16570 one of 139 purchased October 2007", Bonhams]
* [https://www.bonhams.com/auction/29154/lot/118/ "Explorer II Ref. 16570 circa 2006 white dial", Bonhams]
* [https://www.bonhams.com/auction/29154/lot/118/ "Explorer II Ref. 16570 circa 2006 white dial", Bonhams]
* [https://www.christies.com/lot/lot-6567966 "Explorer II Polar ref. 16570, case 232T6474, circa 2011", Christie’s]
* [https://www.beyondthedial.com/post/collector-guide-the-rolex-explorer-ii-all-references-in-detail/ "Collector Guide: The Rolex Explorer II — All References in Detail", Beyond The Dial]
* [https://www.beyondthedial.com/post/collector-guide-the-rolex-explorer-ii-all-references-in-detail/ "Collector Guide: The Rolex Explorer II — All References in Detail", Beyond The Dial]
* [https://www.analogshift.com/blogs/transmissions/guide-to-the-rolex-explorer-ii-polar "A Brief Guide to the Rolex Explorer II Polar", Analog:Shift]
* [https://millenarywatches.com/rolex-16570-caliber-3186/ "Rolex 16570 Caliber 3186 Complete Guide", Millenary Watches]
* [https://millenarywatches.com/rolex-16570-caliber-3186/ "Rolex 16570 Caliber 3186 Complete Guide", Millenary Watches]
* [https://www.bobswatches.com/rolex-blog/editorial/explorer-ii-16570.html Paul Altieri, "Rolex Explorer II 16570 Review", Bob's Watches]
* [https://www.bobswatches.com/rolex-blog/editorial/explorer-ii-16570.html Paul Altieri, "Rolex Explorer II 16570 Review", Bob's Watches]
* [https://bulangandsons.com/products/rolex-explorer-2-16570-white-swiss-only-dial-w1901 "Rolex Explorer II 16570 Swiss-only Polar W-1901", Bulang & Sons]
 
* [https://www.windvintage.com "Rolex Explorer II 16570 unpolished / NOS / full-set listings", Wind Vintage]
[[Category:Explorer II]]
* [https://www.watchprozine.com/rolex/identifying-future-classic-rolex-from-the-1990-2018-era-part-3-the-swiss-only-effect-with-four-examples/10060111/732/ "Identifying Future-Classic Rolex from the 1990-2018 Era, Part 3: The Swiss-only Effect", Watchprozine]
* [https://www.rolexforums.com/showthread.php?t=465866 "Explorer II 16570 changes with serial numbers", RolexForums]
* [https://www.rolexforums.com/showthread.php?t=620911 "Which years? 3186 or 3185?", RolexForums]


[[Category:Explorer II]]
[[Category:Explorer II]]
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