Wristwatch Chronograph with CalendarDUBOIS. Stainless steel, gold plated, steel back. ø 37 mm. 65 grams. Limited, numbered: 517/649. automatic movement. Valjoux 7751 caliber. water resistant to 30 meters. Sapphire crystal, white dial. Subdials for 30-minute and 24-hour counters. Moon phase, date hand, day of the week and month windows, tachymeter scale. Neutral leather strap with pin buckle. Certificate, year of sale 1991, instruction manual Functioning in short time test. The watch comes from an extensive collection estate. The watches have never or hardly been worn, they have not been moved over a long period of time. For function and accuracy we can not guarantee * Partner auction Bergmann. Provenance : estate of a private collection.