OMEGA 210.92.44.20.01.003 Seamaster Planet Ocean Automatic 44mm Ceramic Bezel Blue Dial Swiss MadeProduct Description The Seamaster Professional Diver 300M has enjoyed legendary support since its launch in 1993. While faithfully maintaining the design of the original diver's watch, Omega's 21st century model incorporates new materials and movements. The 43. 50mm model features black ceramic [ZrO2] for the case, bezel, wave pattern dial, crown, and helium escape valve. It has a unique and three dimensional look. To ensure visibility without