Tinker Triple Calendar Moon Phase Wristwatch, Cal. Valjoux 89

Technical characteristics

Type

Calendar & moon-phase watch

Jewel Count

17 jewels

Case Diameter

28.5 mm

Case Thickness

12.8 mm

Place recorded

Switzerland

Movement Caliber

Valjoux 89

Maker / attribution

Tinker

Case Back Inscription

BREVET SWISS Waterproof Antimagnetic Swiss Made Stainless Steel Back 381

Design

Visible features

• Champagne-toned dial with Tinker name and sailing boat logo below 12 o'clock • Day aperture at 9 o'clock displaying 'SUN' and month aperture at 3 o'clock displaying 'AUG' • Moon phase aperture at 6 o'clock labeled '17 JEWELS' above, showing a face graphic and stars • Outer date chapter ring numbered 1 to 31 in blue, traced by a date pointer hand with a blue arrow tip • Red central sweep seconds hand and gold-tone hour and minute hands • Gold-tone round case with case pushers visible near 2, 4, and 8 o'clock positions, mounted on a textured black leather strap

Case Structure and Dimensions

The timepiece is housed in a round gold-tone case measuring 28.5 mm in diameter, 31.5 mm across including the crown, 12.8 mm in thickness, and 34.8 mm lug-to-lug, with a 16 mm lug width. The seller describes the case as having a 'fancy lug design' with a 'stainless-steel back', and it is fitted with a two-piece black lizard leather strap. Case pushers visible near the 2, 4, and 8 o'clock positions operate the calendar displays. According to the seller's notes, the month is adjusted by the pusher at 2 o'clock and the day by the pusher at 8 o'clock, with no quickset mechanism recorded for the date hand.

Dial Design and Display Indications

The watch features a champagne-toned dial carrying the Tinker name and a sailing boat logo beneath the 12 o'clock position. Hour positions are indicated by applied gold-tone Arabic numerals, accompanied by gold-tone hour and minute hands and a red central sweep seconds hand. Calendar and astronomical complications are arranged across the dial surface. Day and month windows appear at 9 o'clock and 3 o'clock respectively (displaying 'SUN' and 'AUG' in the primary image), while a moon phase display sits at 6 o'clock beneath the printed designation '17 JEWELS'. The date is tracked via an outer chapter ring marked in blue Arabic numerals from 1 to 31, indicated by a central pointer hand tipped with a blue arrow.

Reported Movement and Technical Specifications

Movement specifications are drawn from vendor documentation, as the internal caliber is not exposed in the visual record. The seller identifies the mechanism as a Swiss-made, 17-jewel manual-wind Valjoux caliber 89, also cited in summary specifications as 'Swiss Made R 89'. While the case back is not depicted in the image, the seller records stamped case markings reading 'BREVET SWISS Waterproof Antimagnetic Swiss Made Stainless Steel Back 381'. The general dating of the timepiece to the 1940s represents the seller's estimate.

Identification

SKU

WA-0557

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.