The 42mm diameter of D1 Ocean sits comfortably on a range of wrist sizes. Its crown protected device guarantees enhanced protection against accidental impacts, safeguarding the intricate mechanisms within. The indexes and hands on the dial, together with the pip at the 12 o’clock position on the bezel are generously coated with LumiNova® which provide optimal legibility whatever the situation. As a finishing touch, a sapphire crystal with 5 layers of anti-reflective coating protects ensures exceptional clarity, allowing for easy legibility of the dial in various lighting conditions. The screwed case back guaranteed a water resistance up to a pressure of 20 bar (200 m/660 ft).