Caliber Number 4R36 Movement Type Automatic with manual winding capacity Accuracy +45 to -35 seconds per day Duration Approx. 41 hours Case Material Stainless steel Crystal Hardlex LumiBrite Lumibrite on hands and indexs Band Material Silicone Water Resistance 200m / 660ft diver's Case Size Thickness: 13.4 ㎜ Diameter: 42.4 ㎜ Length: 49.4 ㎜ Other specifications Screw case back Screw-down crown Unidirectional rotating bezel 24 jewels Day/Date display Stop second hand function