Length
All lengths and widths for straps are measured in millimeters. Length is expressed like this: 125/75. The first number (125) is the length in millimeters of the tongue side of the strap. The second number (75) is the length in millimeters of the buckle side.
-----> What length should I get?
First you need to know your wrist size. To figure it out, wrap a piece of string around your wrist, mark the string where it crosses itself, lay it flat on a table and measure the distance between the marks.
The table below gives general guidelines for length. Click on your wrist size to see pictures of what different length straps will look like on you.
6.0" - 6.24" (15cm - 15.9cm)....= 120/75
6.25" - 6.9" (16.0cm - 17.5cm) = 125/75
7.0" - 7.4" (17.8cm - 18.8cm)... = 130/80
7.5" - 7.9" (19.0cm - 20cm)... = 135/85
8.0" - 8.4" (20.1cm - 21.3cm) = 140/90
8.5" - 9.0" (21.6cm - 23cm)... = 150/100
The preceding suggestions are just that: Suggestions. My straps are generally thicker than factory straps so they wear a bit shorter. If your factory 115/75 strap is "just right" one of my straps in that same size will be a little too short.
If you have any doubt about which length to get, always choose longer!
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