1. First, separate the watch buckle to both sides, use a little force, otherwise it won't open
2. Break the clasp at the top of the clasp,
3. After breaking, you can see a small pin at the bottom of the buckle, which is used to clamp the main belt
4. Put the long end strap through the clasp
5. Adjust the length of the watch strap according to your own manual size and align the hole to be locked
6. Insert the small needle into the hole of the belt, lock it firmly, and hear a click
7. Return the short side strap first, press it tightly, and you can hear a click
8. Then return the long side belt to its original position, insert it into the strap ring, and press the buckle tightly
