Visual Description
The Ref. 187901 is the large steel and gold Santos Galbée: a 29 × 41 mm stainless steel case with curved sides and an 18k yellow gold bezel fixed with exposed screws. The dial is cream or off-white, with painted black Roman numerals, center seconds and a date window at 6 o'clock; white and silvered dials are also cataloged. The hands are blued steel. The integrated bracelet is steel with gold screws and closes with a folding clasp.
Reference Significance
The 187901 is the steel and gold version of the large quartz Galbée, alongside the all-steel Ref. 987901 and Ref. 1564 of the same 29 × 41 mm size. The later Ref. 1566 matches it in size, metals and movement under a different case-back number; the earliest dated 1566 has papers from December 1996.
Catalogs print its number in two ways, as the reference or as the first part of the case number. Bukowskis has cataloged one under the reference W20011C4 with 187901 as the case number, which is why Archiva lists W20011C4 as another number for this watch.
Historical Context
Cartier introduced the Santos Galbée in 1987 as a rounder version of the 1978 Santos. Dated 187901s in auction and dealer records run from about 1990 to about 1997, the latest a circa 1997 example at Artcurial; nothing found dates one to the launch year or after 1997.
The movement is a Cartier quartz caliber, and catalogs disagree on its number: Bukowskis has cataloged both Cal. 87 and Cal. 687 on this reference, and Heritage gives Cal. 687.
What to Look For
The integrated bracelet is the first thing to check. Test each link for lateral play, look for uneven gaps between links, and make sure the folding clasp closes firmly without wobble. The gold bezel and the gold bracelet screws should match in color; a mismatch suggests a replaced part or a bezel refinished on its own.
The bezel screws should have matching heads and slot depths. On a quartz watch that has had many battery changes, check the case back screws for damage from careless opening.
The dial should be evenly colored, without moisture spots, and the painted numerals should be crisp. The date should change cleanly at midnight. Catalogs disagree on whether the movement is Cal. 87 or Cal. 687, so look at the movement itself, and check the gold parts for 18k hallmarks.
