CARTIER SANTOS CURVED MOON PHASES. REF. 19901. 1990S Wristwatch in 18K yellow gold, moon phases and date. CASE: square, screw-down gold bezel. DIAL: silvered, Roman numeral hour markers, moon-phase aperture at 6 o'clock, blued steel sword hands, date indication by hand. MOVEMENT: quartz. Date corrector depressed, servicing required. STRAP: 18K yellow gold, screwed flat links, folding clasp, signed. Signed and numbered 0027. DIAM. 29 mm. GROSS WEIGHT: 119.95 g. Condition report on request. Condition report on request. A 18K yellow gold quartz santo moon phases watch by Cartier, circa 1990.