Sun Flame SER02-MPI Hybrid Automatic Watch Water Resistant Stainless Steel Case Luminous Hands Date FunctionProduct Highlights Features: Generates power just by wearing it on your wrist. Can operate for up to 6 months on a single charge. The automatic winding quartz movement is made in Japan by EPSON. Cal. PX82 generates power as the rotor spins like an automatic watch with the movement of your arm. The generated electricity is stored in the built in rechargeable battery, allowing it to operate for up to 6 months. The luminous paint uses N Lume. It has 10