Reference:milgauss: Difference between revisions

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<div class="rp-lead">[[File:Milgauss vintage poster.webp|thumb|center|640px|alt=Milgauss family ~~— 6541, 1019, 116400 lineage~~|~~The~~ Milgauss ~~line across its three references: 6541 (1956–1960), 1019 (commonly dated 1960–1988), and 116400 / 116400GV (2007–2023)~~.]]</div>

The Milgauss is ~~Rolex's~~ antimagnetic tool watch. ~~Auction and specialist records include an earlier~~ 6543~~, with~~ examples ~~dated circa~~ 1955; Rolex~~'s own history~~ dates the 6541 to 1956. The 6541 movement sat inside a soft-iron shield rated to 1,000 gauss. Rolex links the model to scientists working around magnetic equipment and says researchers at CERN tested early examples. The main documented groups are the early 6543, the 6541, the 1019, and the 116400 series~~, which~~ Rolex discontinued in 2023.

The Milgauss is Rolex’s antimagnetic tool watch. Christie’s dates two ref. 6543 examples to around 1955; Rolex dates the 6541 to 1956. The line continued with the 1019 and returned as the 116400 series in 2007. Rolex discontinued the latter in 2023 and says CERN researchers tested early Milgauss watches.

The defining construction is the shield. A soft-iron ring and a matching cover surround the movement and give magnetic flux a path around the regulating parts. The case and movement details changed over time, but that protection remained the reason for the Milgauss name.

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<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Identifying a 6541 honeycomb dial?</div><div class="rp-card-title">[[Reference:6541|6541]]</div><div class="rp-card-text">~~The first cataloged Milgauss, with a~~ honeycomb ~~gilt dial~~, lightning-bolt seconds ~~hand,~~ and ~~a soft-iron shield rated to 1,000 gauss~~.</div></div></div>

<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Looking at the earliest documented Milgauss?</div><div class="rp-card-title">[[Reference:6543|6543]]</div><div class="rp-card-text">Two Christie’s examples dated around 1955, with conflicting caliber labels, case measurements and bracelet records.</div></div></div>

<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Identifying a 6541 honeycomb dial?</div><div class="rp-card-title">[[Reference:6541|6541]]</div><div class="rp-card-text">Rolex dates the 6541 to 1956. Documented examples include honeycomb dials, lightning-bolt seconds hands and different bezel and movement configurations.</div></div></div>

<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Cross-checking a 1019?</div><div class="rp-card-title">[[Reference:1019|1019]]</div><div class="rp-card-text">The long-running model, usually dated 1960–1988. Some Phillips catalogues give production through 1990. Its dial families include non-luminous silver examples called “CERN” dials; that label does not prove CERN delivery.</div></div></div>

<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Researching the green-crystal modern?</div><div class="rp-card-title">[[Reference:116400|116400GV]]</div><div class="rp-card-text">The modern revival with a green-tinted Glace Verte sapphire crystal. Rolex discontinued the 116400 family at Watches & Wonders Geneva in 2023.</div></div></div>

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== Early tool-watch references: 6543 and 6541 (c.1955–1960) ==

~~The early Milgauss record includes the 6543 and 6541. Auction descriptions place~~ 6543 examples ~~around~~ 1955 and ~~describe a rotating bezel and early~~ honeycomb dials; the 6541~~, dated by Rolex~~ to 1956~~, added the configuration associated with the~~ lightning-bolt ~~seconds hand~~. The ~~short runs leave few surviving records. Surviving 6541s are generally associated with early~~ 412xxx ~~serials~~, but ~~the serial evidence~~ is too ~~limited~~ to ~~treat that range~~ as ~~an absolute~~ rule.

Christie’s dates two 6543 examples to circa 1955 and describes honeycomb dials and rotating bezels. Rolex dates the 6541 to 1956; auction records document lightning-bolt hands, honeycomb dials and more than one bezel and movement configuration. The 6541 case numbers cluster around 412xxx in the examples reviewed here, but that sample is too small to serve as a serial-year rule.

{| class="wikitable" style="width:100%;"

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! Reference !! Production !! Movement !! Crystal !! Bezel !! Key distinction

|-

| 6543 || ~~c.1955–1956 (published ranges vary)~~ || ~~catalogue descriptions include cal.~~ 1080 || ~~38mm SS, acrylic~~ || ~~numbered~~ rotating || Earliest documented ~~Milgauss~~ reference; ~~surviving records describe early~~ honeycomb dials ~~and do not establish a complete production total~~

| [[Reference:6543|6543]] || examples circa 1955; production span disputed || Christie’s lists 1065 and 1080 in separate cases || Plexiglas in editorial accounts; lot records unspecified || rotating, graduated for 60 units || Earliest documented reference; Christie’s measures 37 and 37.5 mm, Revolution gives 38 mm; both reviewed examples have honeycomb dials

|-

| [[Reference:6541|6541]] || 1956–1960 || 1066M (early) → 1080 (late) || acrylic || rotating engraved (standard) + smooth fixed (US-market) || ~~First cataloged Milgauss~~. Lightning-bolt seconds ~~appeared during the run~~. The documented dial groups include honeycomb gilt, tropical, and non-luminous examples; no-MILGAUSS-text and white-dial examples need case-by-case authentication. Perezcope's "Bull-Gauss" case study is discussed on the 6541 article.

| [[Reference:6541|6541]] || 1956–1960 || 1066M (early) → 1080 (late) || acrylic || rotating engraved (standard) + smooth fixed (US-market) || Rolex dates the 6541 to 1956. Lightning-bolt seconds appear on documented examples. The documented dial groups include honeycomb gilt, tropical, and non-luminous examples; no-MILGAUSS-text and white-dial examples need case-by-case authentication. Perezcope's "Bull-Gauss" case study is discussed on the 6541 article.

|}

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== Historical anchors ==

* 1956: Rolex ~~introduces~~ the 6541. The lightning-bolt seconds hand appears during the early run; surviving caseback stamps help date individual examples.

* Circa 1955: Christie’s dates two 6543 examples to this period. Published introduction dates range from 1953 to 1956.

* 1956: Rolex dates the 6541 to this year. The lightning-bolt seconds hand appears during the early run; surviving caseback stamps help date individual examples.

* 1960: The 6541 ends and the 1019 appears. The references may overlap in surviving stock.

* 1963 to 1965: Jake Ehrlich's Rolex Magazine archive reports 6541 watches presented to several Daytona Continental race winners. The race results are independently documented; the prize-watch details rely on that archive account.

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* [[Reference:Bracelets|Bracelets]]: the 6636 riveted (6541), 7206 / 7836 / 78350 / 78360 family (1019), and 72400 (116400) fitments with clasp date-code key.

* [[Reference:Movements|Movements]]: ~~caliber 1066M /~~ 1080 (6541), 1580 (1019), and 3131 (116400 ~~with a Parachrom hairspring~~).

* [[Reference:Movements|Movements]]: Christie’s lists calibres 1065 and 1080 for individual 6543 examples; catalogues also disagree on 6541 movement labels. The later calibres are 1580 (1019) and 3131 (116400).

* [[Reference:Serial-numbers|Serial numbers]]: numeric pre-1987 (1019 covers 1.0M–7M range), letter prefix 1987–2010 (116400 M / V / G), random alphanumeric 2010 onward (116400 GV late run).

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-<div class="rp-lead">[[File:Milgauss vintage poster.webp|thumb|center|640px|alt=Milgauss family — 6541, 1019, 116400 lineage|The Milgauss line across its three references: 6541 (1956–1960), 1019 (commonly dated 1960–1988), and 116400 / 116400GV (2007–2023).]]</div>
+<div class="rp-lead">[[File:Milgauss vintage poster.webp|thumb|center|640px|alt=Rolex Milgauss family poster|Vintage poster for the Milgauss family.]]</div>
-The Milgauss is Rolex's antimagnetic tool watch. Auction and specialist records include an earlier 6543, with examples dated circa 1955; Rolex's own history dates the 6541 to 1956. The 6541 movement sat inside a soft-iron shield rated to 1,000 gauss. Rolex links the model to scientists working around magnetic equipment and says researchers at CERN tested early examples. The main documented groups are the early 6543, the 6541, the 1019, and the 116400 series, which Rolex discontinued in 2023.
+The Milgauss is Rolex’s antimagnetic tool watch. Christie’s dates two ref. 6543 examples to around 1955; Rolex dates the 6541 to 1956. The line continued with the 1019 and returned as the 116400 series in 2007. Rolex discontinued the latter in 2023 and says CERN researchers tested early Milgauss watches.
 The defining construction is the shield. A soft-iron ring and a matching cover surround the movement and give magnetic flux a path around the regulating parts. The case and movement details changed over time, but that protection remained the reason for the Milgauss name.
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 <div class="rp-grid">
-<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Identifying a 6541 honeycomb dial?</div><div class="rp-card-title">[[Reference:6541|6541]]</div><div class="rp-card-text">The first cataloged Milgauss, with a honeycomb gilt dial, lightning-bolt seconds hand, and a soft-iron shield rated to 1,000 gauss.</div></div></div>
+<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Looking at the earliest documented Milgauss?</div><div class="rp-card-title">[[Reference:6543|6543]]</div><div class="rp-card-text">Two Christie’s examples dated around 1955, with conflicting caliber labels, case measurements and bracelet records.</div></div></div>
+<div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Identifying a 6541 honeycomb dial?</div><div class="rp-card-title">[[Reference:6541|6541]]</div><div class="rp-card-text">Rolex dates the 6541 to 1956. Documented examples include honeycomb dials, lightning-bolt seconds hands and different bezel and movement configurations.</div></div></div>
 <div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Cross-checking a 1019?</div><div class="rp-card-title">[[Reference:1019|1019]]</div><div class="rp-card-text">The long-running model, usually dated 1960–1988. Some Phillips catalogues give production through 1990. Its dial families include non-luminous silver examples called “CERN” dials; that label does not prove CERN delivery.</div></div></div>
 <div class="rp-card"><div class="rp-card-body"><div class="rp-card-meta">Researching the green-crystal modern?</div><div class="rp-card-title">[[Reference:116400|116400GV]]</div><div class="rp-card-text">The modern revival with a green-tinted Glace Verte sapphire crystal. Rolex discontinued the 116400 family at Watches & Wonders Geneva in 2023.</div></div></div>
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 == Early tool-watch references: 6543 and 6541 (c.1955–1960) ==
-The early Milgauss record includes the 6543 and 6541. Auction descriptions place 6543 examples around 1955 and describe a rotating bezel and early honeycomb dials; the 6541, dated by Rolex to 1956, added the configuration associated with the lightning-bolt seconds hand. The short runs leave few surviving records. Surviving 6541s are generally associated with early 412xxx serials, but the serial evidence is too limited to treat that range as an absolute rule.
+Christie’s dates two 6543 examples to circa 1955 and describes honeycomb dials and rotating bezels. Rolex dates the 6541 to 1956; auction records document lightning-bolt hands, honeycomb dials and more than one bezel and movement configuration. The 6541 case numbers cluster around 412xxx in the examples reviewed here, but that sample is too small to serve as a serial-year rule.
 {| class="wikitable" style="width:100%;"
@@ Line 36: / Line 37: @@
 ! Reference !! Production !! Movement !! Crystal !! Bezel !! Key distinction
 |-
-| 6543 || c.1955–1956 (published ranges vary) || catalogue descriptions include cal. 1080 || 38mm SS, acrylic || numbered rotating || Earliest documented Milgauss reference; surviving records describe early honeycomb dials and do not establish a complete production total
+| [[Reference:6543|6543]] || examples circa 1955; production span disputed || Christie’s lists 1065 and 1080 in separate cases || Plexiglas in editorial accounts; lot records unspecified || rotating, graduated for 60 units || Earliest documented reference; Christie’s measures 37 and 37.5 mm, Revolution gives 38 mm; both reviewed examples have honeycomb dials
 |-
-| [[Reference:6541|6541]] || 1956–1960 || 1066M (early) → 1080 (late) || acrylic || rotating engraved (standard) + smooth fixed (US-market) || First cataloged Milgauss. Lightning-bolt seconds appeared during the run. The documented dial groups include honeycomb gilt, tropical, and non-luminous examples; no-MILGAUSS-text and white-dial examples need case-by-case authentication. Perezcope's "Bull-Gauss" case study is discussed on the 6541 article.
+| [[Reference:6541|6541]] || 1956–1960 || 1066M (early) → 1080 (late) || acrylic || rotating engraved (standard) + smooth fixed (US-market) || Rolex dates the 6541 to 1956. Lightning-bolt seconds appear on documented examples. The documented dial groups include honeycomb gilt, tropical, and non-luminous examples; no-MILGAUSS-text and white-dial examples need case-by-case authentication. Perezcope's "Bull-Gauss" case study is discussed on the 6541 article.
 |}
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 == Historical anchors ==
-* 1956: Rolex introduces the 6541. The lightning-bolt seconds hand appears during the early run; surviving caseback stamps help date individual examples.
+* Circa 1955: Christie’s dates two 6543 examples to this period. Published introduction dates range from 1953 to 1956.
+* 1956: Rolex dates the 6541 to this year. The lightning-bolt seconds hand appears during the early run; surviving caseback stamps help date individual examples.
 * 1960: The 6541 ends and the 1019 appears. The references may overlap in surviving stock.
 * 1963 to 1965: Jake Ehrlich's Rolex Magazine archive reports 6541 watches presented to several Daytona Continental race winners. The race results are independently documented; the prize-watch details rely on that archive account.
@@ Line 112: / Line 114: @@
 * [[Reference:Bracelets|Bracelets]]: the 6636 riveted (6541), 7206 / 7836 / 78350 / 78360 family (1019), and 72400 (116400) fitments with clasp date-code key.
-* [[Reference:Movements|Movements]]: caliber 1066M / 1080 (6541), 1580 (1019), and 3131 (116400 with a Parachrom hairspring).
+* [[Reference:Movements|Movements]]: Christie’s lists calibres 1065 and 1080 for individual 6543 examples; catalogues also disagree on 6541 movement labels. The later calibres are 1580 (1019) and 3131 (116400).
 * [[Reference:Serial-numbers|Serial numbers]]: numeric pre-1987 (1019 covers 1.0M–7M range), letter prefix 1987–2010 (116400 M / V / G), random alphanumeric 2010 onward (116400 GV late run).