FEICE Men’s Automatic Watch Mechanical Analog Waterproof Wrist Watches Sapphire Sport Swimming Mens Watch Timepiece Casual Dress Watches for Men -FM1405

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.
Is Discontinued By Manufacturer ‏ : ‎ No
Package Dimensions ‏ : ‎ 4.6 x 4.3 x 2.8 inches; 14.39 Ounces
Item model number ‏ : ‎ FM1405
Department ‏ : ‎ Mens
Date First Available ‏ : ‎ January 17, 2019
Manufacturer ‏ : ‎ FEICE
ASIN ‏ : ‎ B07M8F2VQC
Country of Origin ‏ : ‎ China

Energy reserve. The upper sub–dial shows energy reserve, you can know the running energy of your watch. The under sub-dial is second hand with hacking, date window at 6 o’clock. Pointers and markers are luminous.
Sapphire synthetic mirror, the hardness is second to diamond, has very high light transmission, scratch resistance and refraction. With solid stainless steel watch band and case, make the watch more durable, prolong it’s lifetime.
Battery free, wrist shaking provides energy, as you wear it, it will automatically continue to wind more. Or you can manually wind up the crown to keep it working well.
Water resistant to 5ATM(50M). Wearable around sinks, bathing, swimming, athletic sports in shallow water, but not while snorkeling or scuba diving. (Note: Please tighten the crown to prevent water from entering the dial through the crown.). All watches in our store will enjoy 2 years warranty. Enjoy 100% money back guarantee within 30 days. For any questions, please feel free to contact us.