Specification: Band Length: 230mm/9.9\" Band Width: 20mm/0.79\" Case Thickness: 8mm/0.31\" Dial Diameter: 40mm/1.57\" Net Weight: 0.073kg/0.16 lb Material: Movement: Quartz Movement Case Material: Stainless Steel Band Material: Stainless Steel Clasp: Hook Buckle Function: 3ATM Waterproof Watch Window: Hardlex Gender and occasions Gender:Male Occasions:men\'s business fitness,boys\'outdoor sports activities,such as:football,golf,hiking,tennis,motor sports,cycling,running,etc. Customer Service: Any questions will be responsed within 12 hours. Please note: 3ATM Water Resistant will stand splash of water or rain, but SHOULD NOT be worn while swimming or diving. **NOTE**: --Please DO NOT PULL OUT the Button Underwater. Use in extreme Hot or Cold temperature will shorter watch life. --If mist or droplets found inside watch surface, please contact manufacturer immediately. --Clean the strap by a soft cloth on regular bases is highly recommended. --Too much water contact will damage the watch and shorter watch life.