Reference number 153.014 in excellent condition These models are very rare Calibre 712 Chronometer Automatic Precision Omega Constellation Calibre 712 Stainless Steel Beautiful Original Silver Omega Constellation Dial Size 32mm excluding crown x 42mm top to bottom Thickness 8mm Original Mineral Glass Crystal Chronometer Precision Movement Keeps Precise Time 24 Jewels This Watch is in excellent condition Comes on a new generic brand genuine leather band with stainless steel Omega buckle watch and band will fit 22cm wrist or over 8 inches It is Original and will become a perfect vintage collectible treasure