Caliber Number 6R35 Movement Type Automatic with manual winding capacity Accuracy +25 to -15 seconds per day Exterior Case Material Titanium(super-hard coating) with titanium bezel Crystal Sapphire crystal with magnifier Crystal Coating Anti-reflective coating on inner surface LumiBrite Lumibrite on hands, indexes and bezel Clasp Three-fold clasp with secure lock , push button release with extender Other Details Water Resistance 200m / 660ft diver's Case Size Thickness: 13.3 ㎜ Diameter: 43.5 ㎜ Length: 51 ㎜ Weight 121.0 g Bracelet Length 180 ㎜ Other Specifications Against an allergic reaction to metal Screw case back Screw-down crown Three-fold clasp with secure lock Unidirectional rotating bezel Other Features 24 jewels Date display Stop second hand function