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Universal Genève Uni-Compax: The Secret Behind the Name
Universal adopted the -Compax name for its chronographs in 1936, after the two-pushers Compur of 1934. The Compur and Uni-Compax families co-existed for a few years, after 1940 circa, the name Compur was gradually abandoned and Uni-Compax remained till the late 1960s. The derivation of the word “Compax” is not recorded in the Universal literature, but is likely derived from “Contax”.
The Contax. Before the Compax there was the Contax. Universal registered the trademark Universal Watch Contax on 19 November 1935, and the watch reached the market in 1936, where it lasted little more than a year. It was a two-pusher, three-register chronograph, running seconds, minute counter and a twelve-hour counter, with a unique mechanism by which the chronograph’s hour hand could be moved while the chronograph ran, forward or back, allowing a countdown or a second-time-zone reading.
The Contax below has serial number 587XXX
Universal Geneve Adv.
UNIVERSAL CONTAX Cal. 285
UNIVERSAL CONTAX Cal. 285
UNIVERSAL CONTAX Cal. 285
The movement was the 14-ligne Martel-based calibre 285 (a few on the 283), fitted with an extra wheel for the settable hour hand and covered by two Swiss patents. It was complex, and it did not survive the shift to volume production: by 1936 Universal had settled on the Compax, with a fixed hour counter.
Around two dozen Contax are known today, their serials clustered near 587,000 and 606,000 making it one of the rarer pre-war Universals, and the direct ancestor of the Compax family.
A Universal Geneve Contax Serial 607784 – Courtesy of Antiquorum
However, the name “Contax” was already in use in 1935 when Universal registered it, while the same name had also been registered in 1932 by Zeiss Ikon to identify their 35 mm camera. While no lawsuit is documented it is likely that Universal considered that sharing a model name with a camera might create some confusion so while the name Compax was used starting from 1936 it was on April 14th 1938 that the trade name Compax was deposited.
A CONTAX 1932 camera – Courtesy of Leica Contax
By our record the lowest numbered Uni-Compax we have had is numbered 621xxx, which places it in 1936, while the highest numbered is 1.9million, which dates it to circa 1957, however, the Uni-Compax family remained into production till the end of the next decade.
Universal Geneve Uni-Compax “Big Eye” Ref. 884100/01 – late 1960s – Courtesy of Bonhams
One recurrent question is why a chronograph called “Uni-Compax” has two counters, shouldn’t it be called “Bi-Compax”? The reason is that the “Uni-” prefix counts chronograph counters, so a Uni-Compax has two sub-dials: the 30-minute counter at 3 o’clock and the dial at 9 is the continuous small seconds, it runs whether the chronograph is engaged or not, so it is a timekeeping display, not a chronograph register.
One chronograph counter, hence Uni. The same logic runs up the range: the Compax adds an hour counter at 6 for two registers; the Tri-Compax adds full calendar and moonphase.
Reading the reference. The system set out in the Compur articles applies directly here: the third digit of the reference is the caliber-size code.
Universal Geneve’s calibres – 1939
The factory archive confirms this: reference 12297 and 22296 (third digit 2) are built on the 12¼‴ caliber; 12445, 32422 and 32416 (third digit 4) on the 14‴. So the catalogue sorts itself by movement once you read that one digit, and the two families fall out cleanly.
The mid size, caliber 281 (12¼‴, 27.8 mm). The 33-to-35 mm references: the 122xx and 222xx runs, plus 32204, 42202 and 52209. The archive’s own specification cards fix the type, reference 12297 W at Ø 33 mm, reference 22296 W at Ø 35 mm, both 12¼‴.
Universal Geneve Uni-Compax Ref. 22296 – © Everywatch
Universal Geneve Uni-Compax Cal. 281
Universal Geneve Uni-Compax Cal. 283
The larger size. caliber 285 / 385 (14‴, 31.7 mm). The 34.5-to-37.5 mm references, and the larger part of the catalogue: the 124xxx run, the 224xxx run, the 324xx and 424xx references. Three archive cards anchor it, 12445 at Ø 34.5, 32422 at Ø 35, 32416 at Ø 37.5, all 14‴. The 287 (14¾‴) belongs here as the family’s upper reach.
UNIVERSAL UNI-COMPAX 124146 RG18 AP SLV 285
UNIVERSAL UNI-COMPAX 224100 AP SLV 285
UNIVERSAL UNICOMPAX 12445 RG18 AP SLV 285
Universal Geneve Uni-Compax Cal. 285
Universal Geneve Uni-Compax Cal. 287
The small “baby” chronographs, caliber 289 (10½‴). The 121xx and 221xx series sit under the archive’s own Lady-Carré heading: the smallest two-counter movement built, by Universal’s own note, only for ladies’ and carré (square) cases. They are Uni-Compax by name but we will deal with these in more detail in a dedicated post to come.
A Universal Geneve Ref. 12106 Uni-Compax Baby Chronograph Cal. 269
What makes collectibility
Originality is the entry condition but condition is key: the rating starts from a good-to-excellent grade. Watches in a poor condition are not collector-grade.
The other parameters are model rarity and case design, and these move together. The fancier and rarer cases have the highest ratings, while the plain designs sit at the base.
The “Big Eye.” The mid-1960s Uni-Compax ref. 884100 enlarged the 3 o’clock minute counter into an oversized “big eye,” on a cal. 125 (a Valjoux 23 ebauche). Made only a couple of years; how many exist is unknown, with some claims as low as ~100. It’s the one Uni-Compax that’s a design icon in its own right.
Universal Geneve Uni-Compax “Big-Eye” Ref. 884100/01 © Craft + Tailored
A Universal Geneve Uni-Compax Ref. 12482 with a waterproof 38mm Spillman case, gold chronographs like this one are exceedingly rare, in addition this Spillman case, with its faceted lugs and waterproof construction has become an icon.
Universal Geneve Uni-Compax Ref. 12482 – Courtesy Ineichen
An early production mid-1930s Universal Geneve Uni-Compax Ref. 7065 with a coin-edge waterproof case and a galvanic “Silver Gilt” dial, a rare 4 digits reference chronograph with an attractive case design and a very rare black dial, and in an excellent, seemingly untouched, condition.
Universal Geneve Uni-Compax Ref. 7065 – Courtesy of Phillips
One dial variable outranks the rest: a black dial is rare on a Universal chronograph, so it is a premium. Among these references, 224135 is the only black-dial reference in the archives. However, other references have been found with black gilt dials, but these too are rare.
The period evidence. The commercial life of these references is documented in Universal’s own advertising.
Universal Genève · Factory Archive
Uni-Compax
The two-counter chronograph, sorted by movement. Seventy-two references drawn from the factory archive and arranged by calibre — the third digit of each reference is its calibre code. Case diameters are listed only where the archive cards one; the rest are left open rather than guessed.
Cal. 281
12¼‴ · 27.80 mm15 refs| Reference | Case Ø | Notes |
|---|---|---|
| 12255 | — | — |
| 12269 | — | — |
| 12291 | — | — |
| 12297 | — | — |
| 12297 W | Ø 33 | |
| 22265 | — | — |
| 22273 | — | — |
| 22280 | — | — |
| 22291 | — | — |
| 22292 | — | — |
| 22296 | — | — |
| 22296 W | Ø 35 | |
| 32204 | — | — |
| 42202 | — | — |
| 52209 | — | — |
Cal. 283
13‴ · 29.50 mm2 refs13-ligne variant of the 281 base.
| Reference | Case Ø | Notes |
|---|---|---|
| 12317 | — | — |
| 12323 | — |
Cal. 285 / 385
14‴ · 31.70 mm26 refsThe larger movement; 385/386 supplied the same mechanism to other brands.
| Reference | Case Ø | Notes |
|---|---|---|
| 12445/2 | — | |
| 12445 | Ø 34.5 | |
| 12497 | — | — |
| 124102 | — | — |
| 124103 | — | — |
| 124108 | — | — |
| 124118/1 | — | |
| 124119/1 | — | |
| 22420 | — | — |
| 22450 | — | — |
| 22494 | — | — |
| 224100 | — | — |
| 224106 | — | — |
| 224108 | — | — |
| 224109 | — | — |
| 224122/1 | — | |
| 224135/1 | — | |
| 32416/1 | — | |
| 32416 | Ø 37.5 | |
| 32420 | — | — |
| 32422 | Ø 35 | |
| 42408 | — | — |
| 42410 | — | — |
| 42411 | — | — |
| 42413/1 | — | |
| 42416 | — | — |
Cal. 287
14¾‴ · 33.20 mm5 refsThe family’s upper reach.
| Reference | Case Ø | Notes |
|---|---|---|
| 12546 | — | — |
| 12565 | — | — |
| 12568 | — | — |
| 22574 | — | — |
| 22551 | — | — |
Cal. 289
10½‴ · 23.30 mm24 refsLady-Carré — ladies’ and square chronographs. Covered in a separate article.
| Reference | Case Ø | Notes |
|---|---|---|
| 12101 | — | — |
| 12102 | — | — |
| 12103 | — | — |
| 12104 | — | — |
| 12105 | — | — |
| 12106 | — | — |
| 12106 (var) | — | |
| 12107 | — | — |
| 12108 | — | — |
| 12109 | — | — |
| 12110 | — | — |
| 12110 (var) | — | |
| 12111 | — | — |
| 22101 | — | — |
| 22102 | — | — |
| 22103 | — | — |
| 22104 | — | — |
| 22105 | — | — |
| 22106 | — | — |
| 22107 | — | — |
| 22108 | — | — |
| 22109 | — | — |
| 22110 | — | — |
| 22111 | — | — |
Legend
spec card — Ø verified18k goldblack dial — rarecase / dial variant
Sources & notes
- References transcribed from the Universal Genève factory archive (Uni-Compax and Lady-Carré sections).
- Calibre sizes: 289 = 10½‴ (23.30 mm) · 281 = 12¼‴ (27.80 mm) · 283 = 13‴ (29.50 mm) · 285/385 = 14‴ (31.70 mm) · 287 = 14¾‴ (33.20 mm).
- 12323 is filed under 283 by its reference code but shows an unusually busy dial — confirm the complication before listing.
- 289 (Lady-Carré) is included for completeness; it is covered in a separate article.