CARTIER TORTUE REF. 2540 PERPETUAL CALENDAR WHITE GOLD
Cartier, Paris, "Tortue Perpetual Calendar, Private Collection," No. 18 MG, Ref. 2540. Made in circa 2000.
Very fine, tonneau-shaped, self-winding, water-resistant, 18K white gold wristwatch with perpetual calendar
and an 18K white gold Cartier deployant clasp. Accompanied by a winding box and service receipt
from Cartier dated January 6, 2016.
Two-body, solid, polished, transparent case back with 8 screws, octagonal sapphire-set winding-
crown, correctors on the band, sapphire crystals.
Guilloché silver with painted radial Roman numerals, secret Cartier signature at 10, subsidiary
dials for the day, date, month and aperture for the leap year. Blued steel Breguet hands.
Cal. 9100 MC, rhodium-plated, engraved with special Cartier decoration, 29 jewels, straight-line
lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, 18K
gold rotor with Cartier signature.