Reference:2136

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Oyster → 2136

The 2136 is an early Oyster. It belongs to the first wave of references Rolex assembled after the 1926 Oyster patents, when the company was still learning what a waterproof wristwatch should look like and how to sell it. Most surviving examples are small 9ct gold watches retailed through the British jewellery trade, but the reference also turns up in stainless steel, nickel silver, and rose gold of various karatages. There is no settled production span, no canonical dimension, and no single dial. What exists is a reference number shared across several years of small, hand-assembled gold watches, each carrying enough variation that collectors treat every surviving 2136 as a documentary object in its own right.

Core facts

detail value
reference 2136
family Oyster (early manual-wind)
production approximately 1926–1940 (low confidence; see below)
case shape octagonal (primary); cushion (c.1925 example)
case diameter 32×34 mm / 33 mm / 37×31 mm reported across sources
case materials 9ct yellow gold (most common), 9K rose gold, 18K rose gold, stainless steel, nickel silver
lug style fixed wire lugs (soldered, not spring bars)
bezel smooth polished, integral with case form
crystal mineral glass or early acrylic
movement 15-jewel manual, Hunter-type Cal. 10 (10½ lignes), rhodium-plated
balance Rolex “Superbalance,” Breguet overcoil, timed in 6 positions
caseback signatures “R.W.C. LTD.” and “Oyster Watch Co., Great Britain and U.S.A. Patents”

A second, distinct watch also carries the reference 2136: a c.1960 Precision with Cal. 1400. It is addressed at the end of this article. Everything above this paragraph refers to the early manual-wind Oyster.

Where it sits in the line

The 2136 is a product of Rolex’s earliest Oyster catalog. When Hans Wilsdorf assembled the Perregaux/Perret screw-down crown, the Spillmann three-piece case, and the Aegler movement into the thing he trademarked “Oyster” in 1926, there was no reference-number system. Rolex described the initial Oyster range by case shape and size: octagonal or cushion, 28 mm ladies or 32 mm men’s, in 9ct, 18ct, or 21K gold, silver, or chromium-plated base metal. Reference numbers arrived later, and when they did, they were applied retroactively to variants already in production.

The 2136 is one of those retroactive designations. The reference covers the men’s octagonal Oyster through roughly the end of the 1930s, spanning the transition from the earliest Oyster construction into the beginning of the Bubbleback era. By the time 2136 production wound down, the first Perpetual references (1858, 3131, 3372) had already established the rotor-driven Oyster as Rolex’s future. The 2136 is manual-wind throughout. It is, in effect, a dressy survivor from the pre-Perpetual world, kept in production because the British market still wanted small, conservative gold Oysters and Rolex was happy to supply them.

The closest siblings to the 2136 are the other early-reference manual Oysters of the 1930s: 1069, 1147, 1237, 1573, 1880, 2005, and the rest of the cushion-and-octagonal family catalogued in The Vintage Rolex Field Manual. None of these references is well documented individually. Production data is sparse, auction appearances are thin, and dealer descriptions blur together. The 2136 is one of the better-surfaced examples in this group primarily because its 9ct gold, British-hallmarked variant turns up regularly at small UK auction houses and on specialist dealer sites.

What changed across the run

Within the 2136’s span, the most visible change is material. Early examples, including the unusual c.1925 Antiquorum piece, appear in stainless steel. By the mid-1930s, when Glasgow and Edinburgh hallmarks start showing up on surviving examples, the reference has settled into its most common expression: a small 9ct yellow gold octagonal case, British-hallmarked, retailed through UK jewellers, with a silvered dial and blued leaf hands. Rose gold examples (both 9K and 18K) exist in parallel, and stainless steel surfaces occasionally. A nickel silver variant is documented in dealer listings but is rarely offered at auction.

The movement stays constant across the run. A 10½-ligne Hunter-style manual-wind caliber, fifteen jewels standard, rhodium-plated, with a straight-line lever escapement, a Rolex-patented Superbalance, and a self-compensating Breguet overcoil, timed in six positions for all climates. This is the same movement architecture Rolex used across its early 1930s manual Oysters. The six-position adjustment and Superbalance specification appear on the movement itself and in period advertising: the main technical claim the 2136 makes for itself.

What does not change is the lug configuration. Fixed wire lugs (thin, curved, soldered to the case rather than drilled for spring bars) are a defining visual feature of the early Oyster form. They are present on every 2136 example in the public record. A 2136 with spring-bar lugs is either a very heavily restored case or not a 2136 at all.

Case and construction

9ct gold octagonal 2136, early 1930s.
Rolex Oyster 2136 in 18ct gold, octagonal case — the defining early-Oyster form.
9ct gold cushion-case 2136 — the alternate shape.

The 2136 appears in two case shapes: octagonal, which is most common, and cushion, documented on earlier (c.1925) examples. Both configurations carry the 2136 reference. The octagonal Oyster case is a distinctive form: eight flat sides, each a short facet, meeting at angles rather than curves. The Field Manual describes the octagonal as one of the two original Oyster shapes alongside the cushion, and notes that it was dropped within a few years of the 1926 launch because the cushion sold better, which is what makes surviving octagonals more desirable now than they were then. The 2136 is part of that octagonal population, produced into the 1930s when most contemporaries had moved to rounder or cushion shapes.

The cushion 2136 sold at Antiquorum in April 1999, dated c.1925, is the lone documented example of that shape in the indexed public record. If the dating is accurate, it pre-dates the Oyster patent grant and suggests either a pre-production piece, a misdated lot, or the reference being applied retroactively to a case from the earliest Oyster experiments. The Antiquorum catalog noted the case was fitted with a dust-protecting cap over the crown, an early-Oyster detail consistent with the pre-1930 period.

Case construction is three-piece: bezel, mid-case, caseback, threaded together. The caseback interior carries the reference number and the period signatures. Two inscriptions appear consistently across surviving examples: “R.W.C. LTD.,” short for Rolex Watch Company Limited, and “Oyster Watch Co., Great Britain and U.S.A. Patents.” The second is the standard Oyster-era caseback text, citing the patents referenced on the earliest Oyster casebacks and confirming the 2136 as a fully legitimate Oyster case rather than one of the Wilsdorf alternate-brand Oysters (Rolco, Aqua, Oyster Watch Co. standalone) that share some design DNA.

The three-piece construction itself descends directly from François Borgel’s 1903 Swiss patent for a hermetic screw case, “la lunette, le fond et la carrure se vissant toutes trois sur le garde-poussière”: bezel, caseback, and middle case all screw onto the movement retaining ring. The 1926 Oyster case is a refinement of this architecture, adding the screw-down crown that Borgel’s version lacked. Rolex’s own pre-Oyster watches from about 1919–1920 used Borgel-made three-piece cases of this type (Boettcher, vintagewatchstraps.com). The 2136 caseback is structurally a Borgel-lineage case with Rolex’s patented crown system added.

Dimensions

Reported dimensions vary across surviving examples: 32×34 mm, 33 mm excluding crown, and 37×31 mm have all been documented. The variance reflects real production variation across years and materials plus different measurement conventions on a shaped case: width across flats versus width across points, lug-to-lug versus case-only, inclusive or exclusive of the crown. The practical position for collectors: expect a 2136 to wear as a small watch by modern standards, somewhere in the 32–34 mm range on the short axis, with the octagonal form making it look slightly larger on the wrist than its measurement suggests.

The 15-jewel movement

The 2136’s movement is a Rolex Hunter-type caliber of 10½ lignes, built on the pre-Perpetual architecture Aegler supplied to Rolex throughout the late 1920s and 1930s. Caliber designations of this era are inconsistent across sources. Period Rolex documentation is thin, and modern collector catalogs attribute these movements variously to Cal. 10, Cal. 700 precursors, or unnumbered Hunter bases. What is consistent across surviving 2136 examples is the specification: 15 jewels, straight-line lever escapement, monometallic balance with the Rolex-patented Superbalance designation, blued Breguet overcoil hairspring, rhodium-plated, and adjusted in six positions and three temperatures for all climates.

Six-position adjustment is a meaningful claim for a 1930s wristwatch of this price point. Most contemporary watches of the era were adjusted in three positions, sometimes five. Six-position adjustment was chronometer-grade territory, and Rolex used the specification on its better movements to signal that the Oyster’s case and movement both met serious precision standards. Movement plates on surviving 2136s are signed with the Rolex wordmark and the Superbalance designation; a few examples carry additional chronometer markings, though the 2136 was not submitted to official observatory certification as a matter of course.

There is no shock protection in any meaningful sense on these movements. The Rolex-patented Superbalance is a stability design, not a shock-protected balance. Incabloc and KIF arrive later; the A.296 caliber of the late 1940s is Rolex’s first shock-protected movement, and the 2136’s 10½ Hunter base predates that development by more than a decade.

Dial variants

Surviving 2136 dials span a wider range than the small auction corpus would suggest. Confirmed configurations include:

Silver or white dials with black Arabic numerals and subsidiary seconds at 6 o'clock are the most frequently encountered configuration on 9ct British-hallmarked examples: clean, legible, conservative, suited to the UK retail market the reference primarily served.

Two-tone silver-and-black dials carry a silver minute track around a black central zone or vice versa, a restrained Art Deco treatment consistent with period-dress-watch aesthetics.

Matted silver dials with painted Breguet numerals and auxiliary seconds turn up on mid-run examples, particularly rose gold cases from the mid-1930s. Breguet numerals are the distinctive curved, serif-heavy Arabic form.

Radium luminous dials with original luminous Arabic numerals and matching luminous hands are less common on the 2136 than on its sportier Oyster contemporaries, but they are documented. Radium dials on gold 2136 cases tend to show heavy patina, with the radium ageing to orange or brown against the silvered base.

California dials carry half Roman numerals on the upper half and half Arabic on the lower, with radium plots. The California configuration on the 2136 is unusual and probably represents late production (the California patent dates to 1941) or a service-era dial. Rolex's own term for this layout was Error-Proof or High Visibility; the California name came from 1970s–80s refinishers and stuck.

White restored dials are what the name suggests: refinished dials on original cases. Common on the dealer market, and worth substantially less than an original.

Blued steel leaf hands are the most common handset on gold 2136s. The Antiquorum c.1925 cushion example carried blued “Cathédrale” hands, the cathedral-window openwork design typical of very early Oyster production. Black pointed baton hands and blued hands with radium plots are also documented. As with any watch of this age, matching patina between dial and hands is the primary indicator that both are period-original; mismatched aging is the standard tell for a service replacement.

Auction and dealer record

The 2136 does not have a deep auction history. It has never appeared at Sotheby’s, Christie’s, Heritage, or Phillips in the indexed record. Its public-market trail runs through smaller specialist houses and vintage dealers.

Antiquorum Geneva in April 1999 sold a stainless steel cushion-shaped 2136 dated c.1925, with a dust-protecting cap over the crown. The earliest documented 2136 in the public record. Result not recorded in surfaced sources.

Bonhams (Lot 89, date not surfaced) offered a 9K gold manual-wind example with Glasgow import marks for 1937, a typical British-market 2136 configuration.

Time Rediscovered listed a 9K gold 2136 dated c.1938 with a 33 mm case.

JPTimepieces offered an 18K rose gold 2136 dated c.1930, measured at 37×31 mm, the largest dimensions reported in the dealer record.

Bachmann & Scher listed a 9K rose gold 2136 dated 1938.

Olde Timers (vintage-wristwatches.co.uk) has carried multiple 2136 examples over the years, primarily British-hallmarked 9ct gold configurations.

Collectors Square has indexed eight 2136 sales over an extended period, with prices ranging from EUR 757 to EUR 3,217. The top of that range was reached in 2002 and has not been matched since.

The market for the 2136 is modest. Plain 9ct British-hallmarked examples in average condition change hands in the EUR 1,000–2,500 range today. Original-dial rose gold examples and anything with distinctive period hands (Cathédrale, early radium) can reach the upper end of the range or slightly beyond. There is no auction-driven hype market for this reference; it is a collector-curious watch, not a flipper watch.

The Gleitze question

Because the 2136 is an early 9ct gold octagonal Oyster, and because Mercedes Gleitze wore an early 9ct gold octagonal Oyster during her 1927 Channel swims, the two are frequently conflated in casual references. That conflation is wrong.

Gleitze’s watch is reference 34075, confirmed by Sotheby’s Geneva (9 November 2025, Lot 134, Important Watches Part I). The catalog describes it as a pre-production prototype, “one of only a handful of pre-patent-approved Oysters known,” with a 9ct gold octagonal case, wire lugs, 31×27 mm, Glasgow 1926/1927 import marks, and the caseback engraving: “Miss M. Gleitze The Companion ‘Oyster’. Vindication Channel Swim. October 21st. 1927.” Inside the caseback is stamped R.W.C. LTD. The dial carries “7 World’s Records, Patent Applied for 114948, Oyster Patent winding crown” text. The movement is a 9¾’’’ Hunter, later service-updated to Cal. 600. The watch sold for CHF 1,392,000.

The 2136 and the 34075 share physical characteristics (octagonal case, wire lugs, R.W.C. LTD. caseback stamp, 9ct gold) because they both come from the earliest Oyster construction. They are not the same watch. The 34075 is a pre-production piece Rolex issued to Gleitze before the reference-numbering system was even in use; the 2136 is the catalog reference that later covered production of the similar men’s octagonal Oyster. The prevailing view among collectors who have worked on this question is that the 2136 was produced contemporaneously with and after the Gleitze swim, sharing the Gleitze watch’s design language without being derived from it.

Some dealer listings conflate the two. The 2136 is not the Gleitze watch. The correct frame: the 2136 is a production cousin of the Gleitze watch, not the Gleitze watch itself.

The second 2136: c.1960 Cal. 1400 Precision

A distinct watch also carries the reference 2136. It surfaces in dealer listings as a c.1960 Rolex Precision with a Cal. 1400 movement (18 jewels, manual-wind) sharing no architectural DNA with the pre-1940 Hunter-type caliber of the early Oyster 2136. The case is typically a round Precision form in the 30–32 mm range, not octagonal or cushion. The Cal. 1400 places the watch in the late 1950s to mid-1960s Rolex manual-Precision production, a parallel universe from the early Oyster.

Documentation for this later 2136 is thin. The prevailing explanation among collectors is that Rolex recycled the four-digit reference number after the early Oyster 2136 had fallen out of production, a practice the company used elsewhere, though it is unusual enough that some sources treat the two 2136s as a single reference with a very long production span (1926 through the 1960s), which they almost certainly are not. Anyone looking at a 2136 should check the movement first: a 10½ Hunter-type with fifteen jewels places the watch in the early Oyster population; a Cal. 1400 with eighteen jewels places it in the later Precision population. These are two different watches that share a reference number, and the shared number is the only thing they share.

Collecting considerations

British-hallmarked 9ct gold examples are the most common case and hallmark configuration, dating through the 1930s, with Glasgow, Edinburgh, and Chester marks appearing regularly. Hallmark dating is a useful cross-check against serial-number-based dating, which is less reliable in this period; Rolex serials in the 1920s–30s ran separate gold and silver series (per Boettcher’s research) and the charts that lump them together are noisy. The hallmark is often a firmer date anchor than the serial.

On original dials: as with any watch of this age, unrestored original dials are the exception. Most surviving 2136 dials have been refinished at some point, often multiple times. An original dial with even patina, matching hand aging, and period-correct printing carries a substantial premium but is hard to verify without specialist knowledge. Refinishers active in the UK market through the mid-twentieth century produced dials that are difficult to distinguish from originals without side-by-side comparison to documented period examples.

On fixed wire lugs: if the case has spring-bar lugs, it is not period-correct. The wire lugs are soldered integrally to the case; replacing them with spring-bar lugs requires substantial case modification. Straps are fitted over or around the wire lugs with loops rather than clipped between them; this is normal for the early Oyster form and should not be treated as evidence of tampering.

On the movement signature: period 2136 movements are signed with the Rolex wordmark and typically the Superbalance designation. An unsigned movement, or one with a different caliber architecture, is either a service replacement or a sign that the watch is not what it claims to be. The six-position adjustment text should be visible on the movement.

The indexed dealer range, roughly EUR 750 to 3,200, is a reasonable anchor for current market expectations on unremarkable examples. Exceptional condition, retailer co-signing, or distinctive dial configurations can push above that range. The 2136 does not trade in five-figure territory in the normal course; a plain 9ct example at five figures is out of step with the surfaced market record.

Still open

Several questions about the 2136 remain unresolved in the surfaced sources.

The production span

1926–1940 is the working range used in this article, but the endpoints are soft. The earliest Antiquorum example is dated c.1925 (pre-Oyster-patent), which is either an artifact of catalog dating or evidence of pre-production Oyster cases being retroactively assigned the 2136 reference. The late-1930s hallmarked examples establish production into at least 1938. Whether the reference continued into the early 1940s or was superseded by one of the newer Oyster references of that period is not documented.

The case-shape question

The reference covers octagonal cases predominantly but includes at least one cushion example (Antiquorum 1999). Whether cushion 2136s were a transitional early-production variant or a special-order configuration is not resolved. The sample size (one cushion example in the indexed record) is too small to draw conclusions.

The two-2136 problem

The relationship between the early Oyster 2136 (Cal. 10 Hunter, octagonal/cushion, c.1926–1940) and the later Precision 2136 (Cal. 1400, round, c.1960) is documented only indirectly through dealer listings. Rolex did occasionally reuse reference numbers, but a definitive statement from period catalog records or factory documentation would settle the question. Until then, the two-watches-one-reference reading is the most parsimonious explanation for the surfaced data.

Production totals

No production-total figure for the 2136 has been published. Given the relatively small number of surviving examples that surface annually at auction and dealer channels, the total is likely modest, consistent with the 2136 being one variant among dozens of early Oyster references sharing small-batch production runs. Estimating more precisely would require systematic case-number analysis across the surfaced corpus, which has not been done publicly.

Dial variant chronology

The dial-variant range (silver Arabic, two-tone, Breguet, radium, California, restored) is documented, but the chronology within the production run is not. Which dial configurations were offered when, and whether specific variants correlate with case material or retailer channel, is an open question. California dial examples, in particular, raise chronology concerns; the California patent is 1941, which either places some 2136 California dials at the very end of the run or suggests later service-era dial installations.

Sources

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