How to Choose the Right Size
It is important for you to choose the right size. Only your watch lug width is exact width of the band, can spring bars will fit correctly. SIZE = Band Width = Watch Lug Width
There are some ways to help you know your band width
1.Use a ruler to measure the distance between the watch lugs in millimeters.
2.Check the backside of your current band to see if the width is marked.
3.Find the specification of your watch/model by searching online.