Rolex pre-Daytona chronographs
Daytona › Pre-Daytona chronographs
This guide follows Rolex hand-wound wrist chronographs from the early hinged-case 2021 monopusher, through the non-Oyster 2508 and Oyster 3525, to later tonneau and round Oyster models. The 6238 sits near the Cosmograph 6239 in case size, pump pushers, dial tachymeter and Valjoux 72 movement family. Collectors call it the Pre-Daytona; its production overlaps the 6239.
Early single-button chronographs (1920s–1930s)
The 2021 is a large, hinged-case monopusher documented in gold and steel. Auction catalogues date individual examples from the 1920s into the 1930s, and disagree on movement size and the date of the same case. See the reference file for the examples and source records.
Ref. 2303 is another early monopusher. Hodinkee places it in the 1920s; MyWatch groups it with 1930s chronographs. Auction catalogues date individual examples c.1926–c.1936; the factory production span remains unverified. Its small round and tonneau cases differ from the hinged 2021; catalogues report 17-jewel lever movements and leave the caliber unnamed. Hodinkee MyWatch
MyWatch tentatively places refs. 1074, 1219 and 1226 among monopushers seen on the market in the late 1920s and early 1930s, while noting that some early auction catalogues used model names that did not exist.
| Reference | Dated examples | Case | Movement | Key distinction |
|---|---|---|---|---|
| 2021 | 1920s–1930s catalogue estimates; start and end unconfirmed | 39–41mm, round hinged case; gold and steel examples | Manual chronograph; published dimensions and attribution vary | One side-mounted button; white-enamel, silvered and black dials documented |
| 1074 | Christie's dates one model 1074 listing to the 1920s and case no. 25433 as ref. 1074 to the 1930s | 32mm gold cushion case in both catalogue descriptions | The two Christie's entries name no caliber | Crown-operated, two-register monopusher |
| 2022 | Catalogue dates mostly in the 1930s; one Bonhams example circa 1947; factory span unconfirmed | 32mm cushion case; silver, steel and yellow gold examples | Manual 17-jewel column-wheel description on one lot; VZ 23 naming does not establish fitment | Crown-operated monopusher; Bonhams documents fixed wire lugs on one gold example |
| 2303 | c.1926–c.1936 dated examples; endpoints unconfirmed | 26–30mm round or tonneau, snap-back; steel and gold | Manual lever, 17 jewels in cited examples; caliber not confirmed | Two registers; crown pusher on several examples, case-band pusher on one |
Antimagnetique era (mid-1930s to late 1940s)
The earliest references here are non-Oyster chronographs. The 2508 has two registers and two pushers; auction catalogues and specialist literature disagree on its movement and case details. Later references added screw-down Oyster cases and their own documented movement fitments. Rolex’s wartime correspondence and later auction records document sales of 3525 chronographs to Allied prisoners of war; that history belongs to the individual watch and surviving archive.
| Reference | Production | Case | Movement | Key distinction |
|---|---|---|---|---|
| 2508 | c.1935–1947 dated examples; endpoints unconfirmed | 35–38mm round, snap-back, non-Oyster | Movement attribution disputed; see article | Two registers and two pushers; oval/olive and rectangular forms are documented; date and diameter overlap |
| 3525 | 1939–1945 | ~35mm Monoblocco Oyster, screw-down crown and back; pump pushers | Rolex Cal. 13 (Valjoux 23 VZ base) | One of Rolex’s earliest two-pusher Oyster chronographs; earlier Oyster monopushers existed; one-piece upper case (Monoblocco / Barilotto); the WWII POW reference; Corporal Clive James Nutting's Stalag Luft III watch (case 185,983) was documented as sold "gratis" to Nutting in 1943 |
| 3668 | c.1942–1946 | ~36mm Oyster, reeded gold bezel | Rolex Cal. 13 (Valjoux 23 VZ base) | Sister reference to the 3525 with a fluted gold bezel; the public record is limited. A pink-gold-and-steel example sold by Bonhams was catalogued "circa 1956," an outlier against the 1940s window used for the other documented examples |
| 3833 | c.1942–1946 | Oyster | Cal. 13 (Valjoux 23 VZ base) | Less-documented sibling of the 3525; appears in the Pucci Papaleo and Mondani catalogues alongside the Monoblocco |
Tonneau Oyster chronographs (late 1940s)
Post-war tonneau Oyster chronographs include the 4099, 4500, 4537, 4767 and 5034 in specialist and auction tables. Their cases and material combinations vary, and public sources do not provide a dependable production census. The Valjoux 23 family attribution is useful orientation; the movement and case should still be checked on each example.
| Reference | Production | Case | Movement | Key distinction |
|---|---|---|---|---|
| 4099 | c.1946–1948 | Tonneau Oyster, ~35mm | Cal. 13 (Valjoux 23 base) | Earliest of the post-war tonneau Oyster chronographs; very small production |
| 4500 | c.1947–1950 | Tonneau Oyster, ~36mm | Cal. 13 (Valjoux 23 base) | Documented in steel and yellow gold; the surviving record is not a complete production census |
| 4537 | c.1947–1950 | Tonneau Oyster | Cal. 13 (Valjoux 23 base) | Sibling reference; thin published record |
| 4767 | c.1948–1950 | Tonneau Oyster | Cal. 13 (Valjoux 23 base) | Late tonneau-era reference; the surviving auction record is limited |
| 5034 | c.1949–1952 | Tonneau Oyster | Cal. 13 (Valjoux 23 base) | Last of the tonneau Oyster chronographs; bridges into the 6034 generation |
Pre-Cosmograph round Oyster chronographs (1950–1968)
Round Oyster chronographs in the 6034, 6234 and 6238 families use pump pushers in the cited descriptions. The 6234 is generally dated to 1955–1961, with approximately 500 made per year in published historical summaries. The 6238 is usually dated to the early-to-late 1960s and overlaps the first 6239 production. It retains the dial tachymeter and smooth bezel; the 6239 moves the scale to the bezel and introduces the Cosmograph name.
| Reference | Production | Case | Movement | Key distinction |
|---|---|---|---|---|
| 6034 | introduced c.1950; endpoint disputed | 34–37 mm reported; screw-back case; round pump pushers | Cal. 72 in multiple lots; one 13-ligne/17-jewel example has no caliber named | Dial and case-metal variants; case-construction terminology varies |
| 6234 | 1955–1961 | 36mm round Oyster, pump pushers | Cal. 72B (Valjoux 72 base) | ~500 watches per year is a published estimate; the immediate predecessor of the 6238 |
| 6238 | 1962–1968 (overlap with the 6239) | 36mm Oyster, smooth bezel, pump pushers | Cal. 72B then Cal. 722 (Valjoux 72 base) | Pre-Daytona / Pre-Cosmograph; ~3,965 produced (Dewitte) across steel, 14k, and 18k yellow gold; the layout the 6239 inherits |
Triple-calendar parallels
Two related references get grouped with the pre-Daytona chronographs but sit on a different mechanical platform, and neither belongs in the direct line that hands off to the Cosmograph Daytona.
The 6036 and 6236 carry the Jean-Claude Killy nickname, after the French Olympic skier who owned a 6236, and run the Valjoux 72C, the calendar variant of the Valjoux 72. The 6036 came first (c.1951–1957), then the 6236 (1958–1962). Both are chronograph triple-calendar watches, distinct triple-calendar branch. Pucci Papaleo's I Cronografi Rolex – La Leggenda treats them as their own family rather than a step in the Daytona lineage.
The 8171 Padellone is a triple-calendar moonphase without a chronograph, and belongs in the pre-Daytona historical context only as a sibling complication.
Movement and case lineage
| Era | Movement | Case construction | Pushers | References |
|---|---|---|---|---|
| Early monopusher (1920s–30s) | Case-specific descriptions vary; no shared caliber assigned | Round, hinged, non-Oyster; 39–41mm examples | One side button | 2021 |
| Early compact monopusher (1920s–30s) | 17-jewel lever movement reported; caliber unconfirmed | Round or tonneau, snap-back, non-Oyster; 26–30mm examples | Crown or case-band button | 2303 |
| Cushion monopusher (1930s examples; later catalogue date) | Bonhams describes a 17-jewel column-wheel movement; VZ 23 nomenclature is documented, but fitment to ref. 2022 is unverified | Cushion case; 32mm Bonhams example with snap-on back and fixed wire lugs | One, coaxial with the winding crown | 2022 |
| Ref. 2023 (examples catalogued c.1925, 1930, and 1930s; these dates do not establish a production span) | Antiquorum lists “Caliber 13” for one example; the Field Manual lists V23; Bonhams gives no caliber | Catalogued at 32–33mm in silver and gold | One button; coaxial with the crown on the 1992 example | 2023 (no article) |
| Non-Oyster two-pusher (1930s–40s) | Records name Valjoux 22, V23 or VZ; movement-size descriptions conflict on individual examples | Round snap-back, non-Oyster | Two; oval/olive or rectangular | 2508 |
| Monoblocco Oyster (1939–1946) | Rolex Cal. 13 (Valjoux 23 VZ) | One-piece upper case, screw-down caseback | Pump | 3525, 3668, 3833 |
| Tonneau Oyster (late 1940s) | Cal. 13 (Valjoux 23) | Three-piece Oyster, tonneau silhouette | Pump on most | 4099, 4500, 4537, 4767, 5034 |
| Round Oyster chronographs | Cal. 72 is listed on individual 6034 lots; later references include 72A / 72B / 722 labels | Case dimensions and construction descriptions vary by reference | Pump pushers in cited descriptions | 6034, 6234, 6238 |
The 1951 Ebauches S.A. technical guide labels a two-pusher movement “13 VZ 23”; Stephen Foskett's Valjoux table lists V23 at 13 lignes and V22 at 14. Antiquorum's 14-ligne VZ attribution for case 49'412 conflicts with those references. The size data do not identify that watch's movement.
Published surveys describe a 72B-to-722 transition within the 6238 family, with the later 722 also used in early Cosmograph references. The exact movement marking should be read from the watch; service replacements are possible. Valjoux 72-family movements are manual wind chronographs and do not provide a date quickset. Detailed jewel counts, hacking status and adjustment grades belong to the individual caliber record.
Why the line matters
Earlier references established the Oyster case, two-register layout and Valjoux-derived chronograph architecture that appear again in the 6238 and 6239. The 6238 and 6239 overlap in published production dates, so “pre-Daytona” describes the 6238’s collector position rather than a clean factory succession. Auction records can document wartime provenance or a particular dial, but estimates and isolated results do not define the whole reference family.
Phillips, ref. 6034, case 847'307 Christies, ref. 6034, case 907'744
Related references
- Daytona family index (Cosmograph line beginning with the 1963 6239)
- 2303 (early compact monopusher chronograph)
- Ref. 2023 (early monopusher; no reference article yet)
- 3525 (wartime Monoblocco chronograph)
- 6234 (round Oyster chronograph)
- 6238 (collector “Pre-Daytona”)
- 6239 (first reference carrying the Daytona name)
- 8171 Padellone (triple-calendar moonphase sibling)
- Movements (Valjoux 23 and Valjoux 72 families)
- Bracelets (early rivet bracelets and end links)
- 2022 (cushion-case monopusher)
-
3525 — an early two-pusher Oyster chronograph, the WWII 'Monoblocco' -
6234 — pump-pusher round Oyster, ~500 a year through the 1950s -
6238 — the "Pre-Daytona," direct predecessor to the 6239
Sources
- Danny Milton, "Understanding The Rolex (Non-Paul Newman) Daytona" — Hodinkee (9 November 2022). Places ref. 2303 in the 1920s; does not cite the underlying advertisement.
- "Rolex Chronographs, Part One" — MyWatch (21 October 2012). Groups ref. 2303 with 1930s chronographs and warns that early reference dates are uncertain.
- Christie's, model 1074, London, 18 March 1998, lot 140
- Christie's, ref. 1074 case 25433, London, 9 June 1999, lot 282
- Sotheby's, "The Rolex Daytona: A Complete Collector's Guide"
- Is the Rolex Pre-Daytona a Forgotten Classic? — Russell Sheldrake, A Collected Man (2020). Most thorough English-language Pre-Daytona survey, built on first-hand interviews with Aurel Bacs, Edmond Saran, and Teddy Dewitte.
- Interview: Aurel Bacs — A Collected Man (October 2017). Bacs's framing of the 6238 as a Daytona sibling rather than a clean predecessor.
- In-Depth: The History of the Rolex Daytona, The Emblematic Racing Chronograph — Erik Slaven, Monochrome (December 2024). Family-level long-form covering the Pre-Daytona handoff.
- In-Depth Review: Rolex 6238 Pre-Daytona — Edmond Saran, Le Monde Edmond (June 2016). First major scholarly examination of the 6238; cataloged 14 distinct dial / case iterations.
- I Cronografi Rolex – La Leggenda — Pucci Papaleo. Italian-language reference catalogue covering the full chronograph line including the Antimagnetique era and the Jean-Claude Killy 6036 / 6236.
- The Vintage Rolex Field Manual — Colin A. White, Morning Tundra.
- Stephen Foskett, "Valjoux calibres" — Watch Wiki. Lists Valjoux 22 at 14 lignes and Valjoux 23 at 13; used only to explain reported movement sizes, not to identify any one 2508 movement.
- Ebauches S.A., Valjoux VZ 23: Technical and Practical Communication for the Guidance of Watch Repairers, 2nd edition, March 1953 (copyright 1951)
- Antiquorum, ref. 2023, lot 2 (Vicenza Oro, 18 January 1992). Catalogue describes a 33mm gold monopusher with black dial and crown-mounted pusher.
- Antiquorum, ref. 2023, lot 381 (Monaco, 17 July 2018). Catalogue identifies case 130016, a 32mm silver example and “Caliber 13.”
- Rolex ref. 2022 — dated examples, movement conflict and source-by-source auction record; includes Bonhams London, 14 December 2016, lot 83.
- Bonhams, ref. 2022, serial 618***, London, 14 December 2016, lot 83
- Bonhams, ref. 2023, lot 840 (Hong Kong, 29 November 2024). Bonhams dates the watch to circa 1925, identifies its case as 90267, and shows “2023” engraved on the outer caseback.
- Wikipedia, "Rolex" — Rolex chronograph and wartime history Comprehensive vintage Rolex reference covering 1442 references, including the pre-Daytona chronograph line.
- Antiquorum — Clive Nutting's POW Stalag Luft III watch, ref. 3525 case 185,983 (Geneva, 13 May 2007). Sold "gratis" to Nutting in 1943; full wartime archive; estimate CHF 130,000–160,000.
- Antiquorum — 3525 POW watch delivered to USAAF 1st Lt Leon W. Brownlee (Geneva, 15 May 2023). Stalag VII-A Moosburg; estimate CHF 60,000+.
- Antiquorum — 3525 Monoblocco, case 147,854, pink gold (The Mondani Collection, Geneva, 14 May 2006).
- Sotheby's — 3525 Monoblocco lot (2019). Glossy black gilt steel example, case 186,144, c.1942.
- Sotheby's — 3525 Monoblocco lot (2020). Silvered dial steel example, case 372,822, c.1945.
- Phillips — 3525 Dickins POW lot. RAF Wing Commander Douglas S. Dickins.
- Bonhams — 3668 pink gold and steel chronograph (17 May 2004). Catalogued "circa 1956"; estimate CHF 40,000.
- Alpha Hands — 3525 case-number research. Project recording case-number bands across the 1939–1945 production window.
- Wind Vintage — 3525 POW research.