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【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Mechanical Men's Watch: Skeleton automatic watch with two modes: automatic and manual winding.You can see the movement of the gears as the hour hand moves, and you can also admire the hollow bottom cover and rotating weight.Automatic watches can be worn for about 8 hours a day to ensure the watch has enough energy. Stylish men's watch: Large, easy-to-read 41mm dial, 15mm thick case, 24cm long stainless steel band fits perfectly on your wrist, and the 150g weight makes it comfortable for work and exercise.Choose from 3 styles to suit any occasion. 50M waterproof & sapphire glass: You don't have to take it off even in sudden rain or when washing your hands, and it's also sweat resistant.With sapphire glass and stainless steel case, excellent wear resistance, you can use it every day with confidence.A belt adjustment device and instruction manual are also included. PERFECT GIFT: Men's watches are perfect gifts for festivals, families, and meetings. Browse gorgeous fashion gifts for graduations, birthdays, weddings, and Valentine's Day. Usage Warranty: We promise to provide you with a 30-day exchange guarantee and a 1-year quality guarantee for products purchased on Amazon. If there is a problem with the product, please feel free to contact us by email. We will reply within 24 hours.