Visual Description
The Ref. 987901 is the all-steel quartz Santos Galbée in the large 29 × 41 mm size, with the curved case sides that give the Galbée its name and exposed screws on the bezel. The off-white or cream dial carries painted blue Roman numerals and a blue railway minute track, with blued steel sword hands, center seconds and a date window at 6 o'clock. A sapphire crystal covers the dial, and the integrated steel bracelet, also with exposed screws, closes on a folding clasp.
Reference Significance
Dated examples of the 987901 run from a December 1989 warranty, on an example cataloged by Aguttes, to about 1992. That makes it the earlier of the two all-steel large Galbées on Archiva: the Ref. 1564, the same 29 × 41 mm quartz watch with a white dial and black numerals, is dated from about 1997.
Catalogs split its case-back number in different ways. Bukowskis prints the whole engraving as the case number, and it has cataloged a steel Galbée of about 1994 under the number W20018D6 with a serial beginning 987901; whether W20018D6 is a catalog number for this reference is not yet settled.
Historical Context
Cartier introduced the Santos Galbée in 1987, a more rounded version of the 1978 Santos launched with quartz movements. The 987901's dated examples, from 1989 to about 1992, come from the line's first years.
Its movement is a Cartier quartz caliber. Bukowskis catalogs Cal. 87 on the 987901; Cal. 687 is also cited, and Bukowskis itself has cataloged both numbers on the steel and gold Ref. 187901.
What to Look For
The brushed steel case should show even finishing with the light wear of daily use; heavy or amateur polishing softens the edges around the screws. The painted blue numerals should be even in color without lifting. The date window at 6 o'clock should be clear and free of moisture marks; signs of water inside call for a service and new seals.
The sapphire crystal resists scratches, so deep marks suggest hard wear. All bracelet screws should be present and original, and the folding clasp should close smoothly, neither stiff nor loose. The quartz movement should keep time within normal tolerance; a stopped watch usually needs a battery or a service.










