Innovative new dimensions...updated Seamaster Chronometer in premium grade stainless steel. Certified automatic chronometer movement awarded by the COSC (Swiss Official Chronometer Control). Generously proportioned steel case is presented on the updated Seamaster bracelet...available only in Europe until now. Bold, highly stylized brushed steel bracelet is accented by polished steel links. Polished, unidirectional rotating bezel has engraved blue markers. Vibrant blue wave dial with luminous hands and hour markers. A window at the 3 o'clock hour reveal the automatic date calendar. Anti-reflective, scratch resistant sapphire crystal. Bracelet has a push-button clasp with wet suit extension. Locking screw-in crown and helium escape valve for water resistance up to 300 meters (1000 feet). Excellent for deep sea exploration.Case is 42.5mm diameter, 12.5mm thick.