Mechanical Watch Description The first step to get the watch is to wind the watch,that is,turn the crown clockwise 20 times,so that the watch has the inital power. Afterwards,you only need to wear it for 8 hours a day through the natural swing of the robotic arm to make it able to have sufficient power. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Watch Size The minimum and maximum bracelet circumference is 165mm,200mm.Stainless steel band can be taken off 3 links each side,.You can adjust the size by removing links as you wish. Previous page Automatic Watches 8001 men's automatic watch，more collection value. Minimalist Watch 19003 minimalist quartz watch,Leather strap and stainless steel mesh belt. Quartz Watch 8002 luxury men's quartz watches, elegant and fashionable design, gentleman's choice. Next page 1 Luxurious Automatic 2 Minimalist Quartz 3 Fashion Quartz BUREI Men's Luxury Watches Fashion Men's Watch Classic Men's Watch Luxury Men's Watch Automatic Watch Powered by the energy of wrist movement. Automatic Watch Powered by the energy of wrist movement. Quartz Watch High-quality quartz movement, precise timing. Stainless Steel Strap The stainless steel strap is comfortable to wear and not easy to wear. Stainless Steel Strap The stainless steel strap is comfortable to wear and not easy to wear. Stainless Steel Strap The stainless steel strap is comfortable to wear and not easy to wear. What are the advantages of automatic watches? Automatic watches are long-lasting, require no batteries, and are powered by the energy of your wrist's movement. The production process of the movement is complicated and has more collection value. Does the watch have packaging? Each watch is packaged in a gift box, making it an ideal gift. How to maintaining my watch? Follow these tips:1.Avoid dropping the watch.2.Avoid high temperatures while wearing the watch.3.Keep the watch in a cool, dry place, preferably a watch box.4.Use a soft damp cloth to give metal watch cases and bracelets a superficial clean.