Omega Classic men's black Seamaster Series 300-meter watch 【 Movement 】 Equipped with a fully automatic mechanical movement, it is paired with model 8800 support plates, ensuring accurate timekeeping and strong practicality 【 Hands 】Super-LumiNova luminous coating, minute hand display, in combination with the green luminous dot on the bezel, is used for the countdown to the diving oxygen 【 Calendar 】 There is a calendar window 【 Case 】 It features a 316L stainless steel case and is equipped with the only physical ceramic unidirectional rotating chronograph bezel. Pressure relief valve on the side of the watch case. The diameter of the watch is 42mm