18K GOLD VACHERON & CONSTANTIN ULTRA THIN DRESS WATCH: Fine Swiss watch from the oldest watch manufacturer in the world. The serial number of the case is 364812, case measures 38.8 mm lug to lug and 32.4 mm wide. 18 jewel movement in good running order. Original dial with standard stick hands. Gross weight 34.4 grams, estimated weight of case 7-9 grams.