Caliber Number 4R35 Movement Type Automatic with manual winding Duration Approx. 41 hours Exterior Case Material Stainless steel Crystal Hardlex LumiBrite Lumibrite on hands, indexes and bezel Band Material Silicone Other Details Water Resistance 200m / 660ft diver's Case Size Thickness: 12.6 ㎜ Diameter: 43.2 ㎜ Length: 44 ㎜ Weight 105.0 g Other Specifications Screw case back Screw-down crown Unidirectional rotating bezel Other Features 23 jewels Date display Stop seconds hand function