Quiksilver Men's QWMT005-GUN Tide Digital and Analog Watch With a crown guard, reinforced mineral crystal, marine grade stainless steel construction, and 15 years of tide data for 200 global locations, the Molokai watch is ready to hit any kind of surf at a moment's notice. Case diameter: 45mm Faceted mineral crystal with anti-reflective coating Anadigit tide movement featuring Quiksilver's award winning deep tide system technology Water resistant to 165 feet (50 M): suitable for swimming and showering