Brand model: OLEVS/6617(man) Movement: High quality mechanical movement, accurate travel time! Strap: Solid steel bracelet, drop resistant and scratch resistant, comfortable to wear! Case: Alloy case, vacuum electroplating in furnace, good quality, long time without fading! Waterproof: 30M life waterproof, support washing and washing daily water! Mirror: high hardness coated mirror Diameter: 41mm Thickness: 12.5mm Watch weight: 153g Strap width: 20mm Special features: Decoration,Calendar Display,Week Display,Moon Phases,Perspective window