Doxa Sub 300T Aquamarine Automatic 840.10.241.10 Swiss mechanical automatic movement, self-winding 38-hour power reserve Frequency: 28,800 vph (4.0 Hz) 26 jewels Doxa decorations Functions: Hours, minutes, seconds, date Special features: Rice-grain stainless steel bracelet secured with screws for a secure fit, folding clasp with dive suit extension, Doxa fish symbol Doxa Sub 300T Aquamarine Automatic 840.10.241.10 Mechanical Swiss automatic movement, self-winding 38-hour power reserve Frequency 28,800 vph (4.0 Hz) 26 jewels Doxa finishing Functions: Hours, minutes, seconds, date Special features: Rice-grain stainless steel bracelet secured with screws for a secure fit, folding clasp with dive suit extension, Doxa fish symbol