Most desirable vintage constellation model (among collectors); with a piepan dial. 34mm diameter and 12mm thick. OMEGA CONSTELLATION DATE Caliber 561 Reference 168.005. Twenty Four (24) Jewels, pendent set, Adjusted Temperature Five Positions, Serial No. 24,505,466; Caliber 561. All Rose Plates. PIEPAN original silver satin dial circa: 1966. Original waterproof black strap marked: OMEGA SWISS MADE. Logo crown. All eight stars are clearly visible on the 18k gold dome on the screw off back center. All component parts absolutely genuine original! Clean, running and still very accurate. THIS IS A FINE COLLECTIBLE. DON'T INVEST IN THE STOCK MARKET. BUY SOMETHING PROVEN IN TIME. NOTE: We have been selling vintage watches on EBay since 1998 as watchco1974 with over 9800 vintage watch sales and 100% positive feedbacks. You can buy from us with confidence. OTHER NICE FEATURES: Free U.S. Shipping. $72. FEDEX overseas.