Agelocer Men's Automatic Mechanical Watch - Stainless Steel Waterproof Business Watch with Carved Hollow Design | Perfect for Office, Formal Events & Daily Wear

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, energy dial shouldn’t exceed 35. 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. Read more Product Specifications Case thickness: 9.5mm Watch diameter: 40mm Strap length: 170-205mm Strap width: 20mm Weight: 68g Waterproof: 50m Kinetic energy reserve: 80h Tips: All sizes are manually measured, there is a reasonable error, please prevail in kind. Read more Schwarzwald World time Spirit Moon phase Big Bang Tourbillon Mirror Material Sapphire Crystal Sapphire Crystal Sapphire Crystal Sapphire Crystal Sapphire Crystal Sapphire Crystal Strap Diameter 25mm 21mm 20mm 20mm 24mm 20mm Case Diameter 41.5mm 42mm 40mm 40mm 44mm 40mm Movement Cal.A4910 Mechanical self-wind Cal.A4610-2 Mechanical self-wind Cal.A4610 Mechanical self-wind Cal.A4610-2 Mechanical self-wind Cal.A5500 Mechanical self-wind Cal. A9001 Manual machinery Water Resistant 5ATM 5ATM 5ATM 5ATM 5ATM 5ATM Features energy reserve, luminous,skeleton waterproof, calendar，world time energy reserve, calendar energy reserve, Moon phase,waterproof 24 hours display, luminous skeleton,Tourbillon,Double way winding system