CASE & DIAL Solid 316L stainless steel case with sandblasted finish Screw down stainless steel case back Screw down crown Luminescent hands & numerals Water resistant to 10 ATM / 330 ft / 100 m Case: 42 mm x 42 mm (1.65 in) Distance between lugs: 22 mm (0.9 in) Thickness: 13.5 mm (0.5 in) Weight: 115 g MOVEMENT NH35A Automatic Movement (More info) 40-Hour power reserve Accurate to +40-20 seconds per day 21 Jewels LENS Sapphire crystal with AR coating STRAP Black rubber WARRANTY One year Product Code: NAV-03-ALT-B How an Automatic Watch Works Watch Instructions