Model number 175.031 size Case side: Approximately 38mm Arm circumference: Approximately 15-19cm accessories None color Dial: black Material SS / leather Description Movement: Self-winding Display type: Chronograph Waterproof: Waterproof for daily life Type: Boys State rank Second-hand goods Good degree. It is a general second-hand product, and although there are some details such as usability, scratches, and dirt, it is a good product.