How To Measure Watch Band Size. Determining the appropriate size of a watch band is pretty easy. When your band size options appear, select the recommended size, then tap or click continue.
The easiest way to check your band size is to check the back of the band for any stampings that would indicate the size (like the sample below). Measure the case size of the watch. Related questions does the case thickness of a watch matter?
Watch band or watch strap size is determined by the width of the band end that attaches to the watch.
You can easily measure your wrist size using a tape measure or a piece of string, wrap it around your wrist, and mark where the two ends meet with a marker. Try on several watches to decide how wide you'd like the band to be. Then you can just take the old strap and hold it to a ruler, or measure the watch itself. Then, lay the thread out flat and measure the distance from the end to your mark on the thread.