OMEGA first introduced the Seamaster 300 in 1957 - it was a watch designed especially for divers and professionals who worked underwater. More than half a century later, 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 18K SednaÖ gold hands coated with "vintage" Super-LumiNova. The polished ceramic bezel ring has an OMEGA CeragoldÖ diving scale. The 41 mm brushed and polished 18K SednaÖ gold case is presented on a matching bracelet. A transparent caseback makes it possible to see the anti-magnetic OMEGA Master Co-Axial calibre 8401 within.