Product Specifications : Brand : Orient Series : Sports Model number : RK-AT0105B Release Date : 26 September 2019 Movement : Mechanical Automatic Caliber No. : F6R42 Drive system : Mechanical type Accuracy : day difference + 25 seconds to -15 seconds Drive time : 50 hours or more Case material : Stainless steel Glass material (table) : Sapphire crystal (AR coating) Glass material (back) : Inorganic glass luminous light : Yes Band material : leather Bandwidth : 21 mm Size : 49.2m x 43.2m x 13.7m H x W x T Weight : 111g 20 standard atmosphere waterproofing Anti-magnetic type 1