Audemars Piguet Royal Oak Offshore Chronograph SE 7750 Blue Dial Mens Watch - Audemars Piguet Royal Oak Offshore Chronograph SE 7750 Blue Dial Mens WatchMovement: Asian 7750 25J Automatic Chronograph Movement at 21600vphCase: Solid 316L stainless steel , screw-in back and crownSize: 42mmBezel: Brushed stainless steelDial Style: Blue dial with sub-dials, date at 3:00 Crystal: Scratch resistant sapphire Functions: Date,Hours, Minutes, Seconds,Chronograph FunctionsStrap