Vacheron Constantin-rare rectangular watch in a super 18 karat gold case. Dial is signed Vacheron&Constantin-Sub seconds at 6-beautiful raised Roman gold numerals and markers-Gold hands. Movement which is rectangular signed Vacheron Constantin-Geneve-numbered 431877 Back is signed-Vacheron Constattin--Swiss-numbered 278732-18k.0.750 gold hall mark stamps. Measurements app 27 mm wide excluding the winder and app 38 cms lug to lug. Watch is in good condition for it's age very minimal scratches on the case,original glass also have minor scratches= watch is in good running order,however like with all vintage watches I do not guarantee exact time keeping as oll old watches can make time differences. Overall length of the watch including the strap is 23 centimeters. Watch comes with a new black leather strap. Watch will be packed well for safe shipping with tracking number.