Retro Skeleton Automatic Watch for Men - 45mm Mechanical Watch with Calfskin Leather Strap, Mineral Crystal Glass & Waterproof Design - Perfect for Business, Casual Wear & Sports Activities

How to maintain this mechanical watch? When using for the first time, please manually wind up the watch to get enough energy to keep it working well, winding the dial shouldn’t exceed 35 circles.If you wear the watch less than 8 hours a day, please manually wind up your watch to keep working well.Please avoid wearing it in hot water or under thermal steam environment, such as hot bathing, hot springs, sauna, etc.Battery free, as you wear it, it will automatically continue to wind up. If you wear it more than 10 hours a day, you won’t never to manually wind up your watch. Personalized design Hollow craft machinery 45mm big dial HD see-through automatic movement back cover Rose gold case Artificial sapphire glass Soft calfskin leather strap