Omega first introduced the Seamaster 300 in 1957 as a watch designed especially for divers and professionals who worked underwater. Now the timepiece makes a comeback in a completely upgraded and enhanced form, ready for a new generation of adventurers. This Seamaster 300 has a sand-blasted black dial with 18ct Sedna gold hands coated with "vintage" Super-LumiNova. The 18ct Sedna gold bezel has a Ceragold ring and diving scale. The 41 mm stainless steel case is presented on a stainless steel and 18K Sedna gold bracelet. A transparent caseback makes it possible to view the anti-magnetic OMEGA Master Co-Axial calibre 8400 within.