Waterproof structure for watch

A waterproof structure for a watch, comprising a watch case, a watch cover, a bottom case, and a circuit module;

• wherein the watch cover is fixedly provided on one side of the watch case, the bottom case is fixedly provided on the other side of the watch case, and the circuit module is provided within the watch case;
• a display screen is provided between the watch case and the watch cover, and a first sealing ring is provided between the watch cover and the display screen;
• the first sealing ring is fixedly provided on the watch cover and abuts against the display screen;
• wherein the watch cover comprises a first cover body and a second cover body,
• wherein a second sealing ring is provided between the watch case and the watch cover, and the second sealing ring is fixedly provided on the watch case or the watch cover and abuts against the watch cover or the watch case;
• a third sealing ring is provided between the first cover body and the second cover body, and the third sealing ring is fixedly provided on the first cover body or the second cover body and abuts against the second cover body or the first cover body;
• a fourth sealing ring is provided between the watch case and the bottom case, and the fourth sealing ring is fixedly provided on the watch case or the bottom case and abuts against the bottom case or the watch case;
• the first sealing ring, the second sealing ring, the third sealing ring, and the fourth sealing ring all have a diameter of 0.9 mm and a hardness of 55 degrees;
• materials of the first sealing ring, the second sealing ring, the third sealing ring, and the fourth sealing ring are all selected as soft liquid silicone;
• the bottom case comprises a case portion and a central portion, a connection position of the case portion and the central portion has a dyne value greater than 34 and has a width of more than 1.5 mm, and the central portion has a dyne value greater than 34.