3089. (25666536/1) Omega. A fine stainless steel manual wind calendar chronograph bracelet watch with dual time function Omega. A fine stainless steel manual wind calendar chronograph bracelet watch with dual time function. Model: Flightmaster Reference: 145.013 Date: Circa 1969 Movement: 17-jewel Cal.910 manual wind, No.29137190 Dial: Grey/brown, signed Case: Brushed and polished tonneau form, screw down back, crown flanked by twin buttons, adjustment crowns at 8 and 10 Strap/Bracelet: Fitted brushed and polished link, stamped 1162 Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 42mm x 52mm