Full set , Caliber No:4R36 Drive system: Mechanical self-winding (with manual winding) Precision: Day difference +45 seconds to -35 seconds Drive period: Lasts about 41 hours at maximum lifting Case material: Stainless steel (hard coating) Back cover: Stainless steel and glass Glass material: Hard Rex Lumibright: Yes (index) Band material: Nylon Waterproof: Enhanced waterproofness for daily life (10 bar) Magnetic resistance: Yes Thickness: 13.4 Horizontal:42.5 Vertical: 46 Other specifications: Transparent back