Vacheron Constantin, Fine 18k Yellow Gold Triple Calendar, Ref. 47051, circa 2000 Case: 36 mm, 18k yellow gold, three body, snap on case back, flared lugs, stepped bezel, 707522 Dial: two tone silver, gold Roman numerals, outer date numerals, apertures for the days of the week and the months, yellow gold feuille hands Movement: caliber 1126, automatic, 33 jewels, , adjusted heat, cold, isochronism and five positions, 21k gold rotor segment Band: alligator band and original 18k gold buckle Signed: Vacheron Constantin on the dial, case, and movement HID03101062020 © 2020 Heritage Auctions | All Rights Reserved