Universal Genève Triple Calendar Moonphase 21312

A full calendar with moon phase, an unusually arranged original dial and the distinctive “Spider Lugs” make this Universal Genève Ref. 21312 from the 1940s a particularly interesting early calendar watch. At its heart is the dial, which has aged entirely naturally over the course of around 80 years, developing a warm and irregular patina that gives every part of the watch its own individual historical character. Measuring 34.5 mm in diameter, the stainless-steel case has well-balanced proportions, yet the virtually non-existent bezel and consequently very large dial surface make the watch appear considerably larger and more present on the wrist.

Particularly fascinating is the full-calendar complication with moon phase, which integrates a remarkable amount of information into the dial while maintaining a surprisingly harmonious appearance. The day of the week is displayed individually in a rectangular window at 12 o’clock, while the date is indicated by a central hand on an off-centre scale at 3 o’clock. At 6 o’clock sits the moon-phase display, surrounded by the month indication, while the small seconds at 9 o’clock complete the asymmetric and, for its time, remarkably progressive dial layout. It is precisely this unusual arrangement that clearly distinguishes the Ref. 21312 from more conventionally designed calendar watches of its era.

The true highlight of this example, however, is its original, unrestored dial. Over the decades, its originally light surface has developed an intense, warm patina that spreads irregularly across the dial, giving it an entirely individual appearance. Discoloration, subtle traces of ageing and varying shades are not artificially created effects, but the visible result of around eight decades of natural ageing. A patina like this can neither be reproduced nor found in exactly the same form on another example. Especially with complicated vintage watches, whose dials were frequently restored or refinished during their lifetime, this untouched historical substance holds a particular appeal for us.

Equally unusual is the 34.5 mm stainless-steel case with its exotically shaped spider lugs. The widely extending, almost multi-part lugs give the watch an extraordinary architecture and further enhance its presence on the wrist. The case itself has been remarkably well preserved: the original edges and contours of the lugs remain clearly defined, while the deeply stamped reference and serial numbers on the caseback are still clearly visible. On a watch around 80 years old, these details are important indicators of the case’s well-preserved condition.

The watch is completed by an unusual vintage stainless-steel bracelet.

Taken as a whole, this Universal Genève Ref. 21312 combines several qualities that make early complicated vintage watches so fascinating: a sophisticated full-calendar complication with moon phase, an unusual dial architecture, exotic Spider Lugs and, above all, an original dial whose unique patina visibly preserves around 80 years of history.

Condition report
Dial: Original and unrestored dial - pronounced, entirely natural patina with age-related discoloration - all full-calendar indications including day, date, month and moon phase well preserved - original hands with authentic ageing - signed “UNIVERSAL GENÈVE” and “SWISS”.

Case: Stainless-steel case measuring 34.5 mm in diameter - distinctive spider lugs with well-preserved original contours and edges - age-appropriate signs of wear and use - deeply engraved reference and serial numbers on the caseback.

Movement: Universal Genève manual-winding Calibre 291 - full calendar with moon phase - timegrapher readings: +17 s/d, amplitude 360°, beat error 0.6 ms.

Serial number: 1186xxx (1945)

Int.Exe.: 128838