Select a watch band type and place your band over the correct template. Choose the length that fits your band the closest.
For leather or rubber bands measure from the middle hole to the pin end and add it tothe watch measurement from pin to pin. This will equal your wrist size.
To measure the lug end width, fit one of the bars above between the lug ends of your watch. If you a leather strap that is between the displayed sizes, select the next highest width.