(56893) Omega Summer Blue Seamaster PloProf 1200M 227.32.55.21.03.001, 22732552103001, O-MEGASTEEL on a rubber strap with a stainless steel tang buckle, automatic in-house Caliber 8912 movement, certified chronometer, 60-hour power reserve, centered sweep seconds hand, "Summer Blue" dial with luminous hands and hour indicators, sapphire crystal, water resistant to 1200m/4000ft. Diameter: 55mm x 48mm, thickness: 15.5mm. Unworn with ...