Calibre Calibre no. 6R35 Movement Type Automatic with manual winding Power Reserve/Battery Life Approx. 70 hours Accuracy +25 to -15 seconds per day Case Case Material Stainless steel Glass Material Sapphire crystal LumiBrite LumiBrite on hands, index(es) and bezel Layout Water Resistance 20 bar Case Size Thickness: 12.9 ㎜ Diameter: 45.0 ㎜ Other Specifications Stop seconds hand function Date display Jewels: 24 Features Other Features Screw case back Unidirectional rotating bezel Screw-down crown LIMITED EDITION on the case back Three-fold clasp with secure lock, push button release with extender