The band is adjustable with an included pin tool. (The tool is similar to the iPhone's sim card tray tool.) The bracelet has plenty of room for adjustment and will fit wrist sizes from extra small to up to 9 inches. If your wrist circumference is larger than 9 inches, get a pair of extra links here.

How to adjust the band in 3 steps:

 How do I find my watch size?

See the engravings on the back of your watch find the watch size (example 49mm).