Dubois-Dépraz 100th Anniversary Grande Date Chronograph Wristwatch

Technical characteristics

Type

Chronograph

Model

made for the 100th Anniversary of the manufacture (1901-2001)

Caliber

4500 (based on ETA 2892 A2 with additional modules by Dubois-Depraz)

Material

gilded stainless steel

Dimensions

Height 37.3 mm. Width 40.8 mm.

Limitation

limited edition of 100 pieces, No. 25 / 100

Place recorded

Switzerland

Maker / attribution

Dubois-Despraz, Le Lieu (Vallée de Joux)

Design

Visible features

• Silver-toned dial with double-window big date aperture at the 12 o'clock position displaying date '20'. • Three subsidiary dials positioned at 3, 6, and 9 o'clock with blued subsidiary hands. • Gold-toned case with rounded stepped bezel, two round pushers, and a fluted winding crown. • Fitted with a brown alligator-pattern leather strap.

Dial Configuration and Complications

The silver-coloured dial features radial luminescent indexes and blued subsidiary hands. At the 12 o'clock position, a half-instantaneous Grande Date mechanism is displayed via a double aperture, visibly reading '20' in the reference photograph. Three subsidiary registers are located at 3, 6, and 9 o'clock. The source catalogues four complications: a 1/8-second chronograph operated by two pushers, a dragging 30-minute counter at 9 o'clock, a 12-hour counter at 6 o'clock alongside subsidiary seconds at 6, and the Grande Date aperture.

Case Construction and Exterior Observations

The watch features a vertical tonneau-shaped profile executed in gilded stainless steel, measuring 37.3 mm in height and 40.8 mm in width. Visual observation shows a gold-toned case with a rounded stepped bezel, a fluted winding crown, and two round pushers operating the chronograph mechanism, while the source description characterizes them as olive-shaped push-pieces. The cataloguer notes that the case back is secured by eight screws. In addition, the catalogue entry lists a black leather strap with a gilded metal buckle, whereas visual inspection of the provided photograph shows a brown leather strap with an alligator pattern.

Reported Movement and Accompanying Materials

The internal mechanism and the case back are not visible in the provided image. According to the auctioneer, the watch is powered by self-winding calibre 4500, described as being based on an ETA 2892 A2 with additional Dubois-Dépraz modules. Both the movement and case are listed by the source as unnumbered, though the piece is catalogued as number 25 of a 100-piece limited edition created in 2001 for the manufacture's centenary (1901–2001). The source notes that the dial, case, and movement are signed, and records the inclusion of an original fitted box and certificate of origin.

Identification

Serial number

25 / 100

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.