VACHERON CONSTANTIN. A FINE AND RARE PLATINUM TRIPLE CALENDAR WRISTWATCH WITH MOON PHASES Signed Vacheron Constantin, Genève, ref. 37150/000P, no.15, movement no. 770’630, case no. 631’527, manufactured in 1992 Movement: cal. 1150, manual, 17 jewels, signed Dial: signed Case: snap on back engraved N°15, 36 mm. diam., signed With: 18K white gold Vacheron Constantin buckle and setting pin