Omega Planet Ocean 600m Watch, 45.5mm Gray Dial, 215.92.46.51.99.001This model, with its scratch resistant sapphire crystal, features a sand blasted grade 5 titanium dial with Arabic numerals and a date window at the 6 oclock position. The dial presents a small seconds sub dial, as well as 60 minute and 12 hour counters on one dial for intuitive reading of elapsed time. Mounted on the 45. 5 mm grade 5 titanium case, is the world's premiere grey silicon nitride ceramic bezel with orange rubber. The diving scale of the