Binlun Watch Skeleton Men39s Automatic Mechanical Luxury See-Through Back 5 ATM Water Resistant Gift Popular Fashion Watch

✫ High quality The case is made of stainless steel. Sapphire glass has high wear resistance and is not easily damaged. The belt is made of high quality calf leather that is gentle on the skin, and the strong water resistance makes the wrist feel good even in the summer. The material of the belt is soft, creases are not easily left, and the surface is difficult to break into pieces.✫ Movement A mechanical movement made in Japan. You can see the movement inside with the see-through back design. Automatic winding (with manual winding) Duration approx. 42 hours (at maximum winding) Frequency 21600 times / hour Number of stones 21 stones.✫ Specifications Case diameter approx. 44 mm, thickness approx. 13 mm, bandwidth approx. 24 mm. With a small second board. 5 ATM water resistant (50 meters water resistant) Can be used for swimming and general household chores. Do not adjust the clock in water.