Watchband 20mm is not compatible with watch strap 22mm. Please check the compatibility before purchasing to ensure that this watch band fits your watch.
Step 1: Determine Strap Width
We can check your old watch strap to see if the size is marked. If the size is determined and the strap fits well, you can purchase the same size.
Step 2: Determine Strap Length
If you have an average size wrist, it's likely safe to purchase a standard-length strap that is 20mm and 22mm. If you have a small size wrist, it's likely safe to purchase short straps that are 20mm-S and 22mm-S.
If you are hoping to get the surprise of getting the right size of the strap, maybe you can make a measure again and again. Right?