• Item Model：Voyager A11B-01
• Size：40mm Diameter/12mm Thickness/Lug to Lug:48mm
• Case Material：CuSn8 Bronze
• Glass：Sapphire Crystal
• Movement : Seiko NH35
• 3-hand with calendar display,hacking feature
  
• Mechanical automatic,self winding
• Water Resistant: 10 ATM(100M)
• Straps: 2.0mm thickness, 27mm length leather strap.Lug Width:22mm
• Luminous:Swiss Super-lumiNova
• Weight:99g

!!!Note: The bronze case will naturally oxidize when exposed to air. We ship each watch with a protective film to minimize oxidation, but it is impossible to prevent entirely. If you notice black spots on the case upon receipt, it's because a small amount of air may have seeped through the protective film, causing slight oxidation in certain areas of the case. This is part of the normal oxidation process. Please consider carefully before purchasing if this is a concern.)