Watch Strap Size Guide

The chart below serves as a reference as to which strap length is suitable for you. All you have to do is take a thread or tape to wrap it around your watch wrist and mark it when point A touches point B. 

 6.0 - 6.5" wrist (150mm - 164mm)  70mm (buckle side) / 115mm (tail side)
 6.6 - 7.0" wrist (165mm - 178mm) 75mm (buckle side) / 125mm (tail side)
 7.1- 7.5" wrist (170mm - 190mm) 80mm (buckle side) / 130mm (tail side)
 7.6 - 8.0" wrist (191mm - 203mm) 80mm (buckle side) / 135mm (tail side)
 8.1 - 8.5" wrist (204mm - 216mm) 85mm (buckle side) / 140mm (tail side)
 8.6 - 9.0" wrist (217mm - 229mm) 90mm (buckle side) / 145mm (tail side)