OMEGA Seamaster Diver 300M (Summer Blue)

Omega's Seamaster Diver 300M (Summer Blue), reference 210.32.42.20.03.002, is a dive watch with a 42 mm steel case. The case measures 13.56 mm thick and 49.9 mm lug to lug, with 20 mm between the lugs. A domed sapphire crystal with antireflective treatment on both sides covers the blue dial. Inside is the self-winding Omega calibre 8800, a Master Chronometer movement resistant to magnetic fields of 15,000 gauss, with 55 hours of power reserve. The unidirectional rotating bezel and screw-down crown accompany a date function, and a helium escape valve marks it out for saturation diving. It comes on a blue rubber strap with a steel pin buckle. The screw-down crown helps hold the case to its 300 metre water resistance rating.