IWC Aquatimer Automatic 2000 Watch . Caliber 30110, Automatic movement, Black rubber strap with push button release safety clasp, Titanium case, Black dial with indexes, 21 jewels, Power reserve to 42 hours, center seconds with stop function, Date indicator at 3 o'clock position, Mechanical rotating inner bezel, Screw in crown, Convex sapphire glass, Water resistant to 2000 meters, Case diameter: 42 mm. # 3538-004 #.