Specification: Caliber Number: 4R36 Movement Type: Automatic with manual winding capacity Duration: Approx. 41 hours Exterior Case Material: Stainless steel Crystal: Hardlex with lenses LumiBrite: Lumibrite on hands, indexs 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: 13.4 ㎜ Diameter: 42.4 ㎜ Length: 49.4 ㎜ Other Specifications: Screw case back Screw-down crown SPECIAL EDITION on the case back Three-fold clasp with secure lock Unidirectional rotating bezel Other Features: 24 jewels Day/Date display Stop second hand function