FUNCTION:Luminous, Alarm, WR30M Domestic Waterproof, Hour Reporting, Chronograph, Week Date Display, 12/24 Hour System.THICKENED LENS:The lens is thickened and hardened, with transparent luster, stable chemical properties and durability.WATERPROOF:The digital chronograph watch is WR30M life waterproof, which is not afraid of splashing water, can be worn safely in rainy days.ABS PLASTIC:This electronic watch adopts excellent ABS plastic case, canvas strap, stainless steel bottom cover and buckle, resistant to falling and abrasion, especially designed for outdoor sports. Specification: Item Type: Digital WatchStrap Material: CanvasCase Material: ABS PlasticBottom Cover Material: Stainless SteelLens Surface Material: Acrylic Resin Lens SurfaceWatch Length: Approx. 26.6cm/10.5inWatch Head Color: BlackBattery Model: 1 x CR2025 1.5V 150mAh (Built in)Domestic Waterproof: WR30MSuitable Crowd: Men, StudentFunction: Luminous, Alarm, WR30M Domestic Waterproof, Hour Reporting, Chronograph, Week Date Display, 12/24 Hour System Packing list: 1 x Digital Watch1 x User Manual Notice: 1. Please allow 13mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.