About this item Movement: Japanese imported quartz analog movement and battery, provide precise time and long-term running. The watch can be used for more than 1 years. Material: The strap is made of genuine band, comfortable and soft and breathable. Mineral glasses, 304 steel case, stainless steel mesh band, Suit for all kinds of occasions. Sports chronograph: Multifunctional sub-dial can work, chronograph, calendar, run seconds. Provide you with multi-function purpose use. 3ATM waterproof: This watch is waterproof 30m, can withstand daily splash or short immersion in water, but not swimming and showering, diving or snorkeling. After sales service: Each product has a 30-day money back and 1-year after sales service. If you have any questions about the product, please contact me immediately and we will give you a satisfactory solution.