Specifications: Dial diameter: 4.5 cm Dial thickness: 1.5 cm Bandwidth: 2.2 cm Strap length: 24.0 cm. Buckle type: folding safety buckle Watch weight: 210 grams Please allow 0.1-0.2cm for manual measurement error. Materials: Case material: stainless steel Strap material: stainless steel strap Mirror: synthetic sapphire glass Packaging: Watch * 1; Original watch box*1; Instruction Manual*1; Warranty Card*1 Note: Please do not press any buttons in the water or wear this watch for a long time for underwater activities. Try not to expose the watch to steam and hot water, for example, do not take a hot bath. Do not wear this watch while diving. Also avoid using it in extremely hot or cold temperatures. Excessive exposure to water will shorten the life of the watch.