NAVIFORCE Men's Military Style Watch - Unique Calendar Display Sport Quartz Wrist Watch - Black & Brown Imported Made-in-Japan SEIKO brand quartz movement, Model: WAT1365. Alloy case + stainless steel back + genuine leather strap.Display time, date and week Case plated with IP in matt black. Band size: 26*2cm, Case Diameter:4.5cm Only suitable for men. Exquisite workmanship and high quality production.