Thomas Earnshaw Men's 'Officer' Swiss Quartz Stainless Steel Dress Watch (Model: ES-0017-44) Stainless steel watch powered by a Swiss parts Quartz movement featuring textured dial with Roman numeral markers, moon-phase calendar, and day/date sub dials 41 mm stainless steel case with mineral dial window Swiss-quartz Movement Case Diameter: 41mm Water Resistant To 50m (165ft:in General, Suitable for Short Periods Of Recreational Swimming, but not Diving or Snorkeling