Omega Seamaster Planet Ocean 39.5mm Co-Axial Black Dial Watch

This model, with its scratch-resistant sapphire crystal, features a black ceramic dial with Arabic numerals and a date window at the 3 o’clock position. The black ceramic unidirectional bezel with OMEGA Liquidmetal™ diving scale is mounted on a 39.5 mm stainless steel case. Other features include an alveol screw-in caseback and a stainless steel bracelet with patented extendable foldover clasp.The OMEGA Seamaster Planet Ocean 600M Master Chronometer is water resistant to 600 metres / 2000 feet / 60 bar, and has a helium-escape valve. The OMEGA Master Chronometer calibre 8800 at the heart of this timepiece can be seen through the transparent caseback. To achieve Master Chronometer status, it has passed the 8 rigorous tests set by METAS (The Swiss Federal Institute of Metrology).