Quick Guide: How to Measure for the Right Watch Strap
If you’re new to the world of watches and want to change your strap, two key measurements determine the correct fit — lug width and wrist size. This quick guide walks you through how to measure both accurately before ordering.
Strap Width
Measure (in millimeters) the lug width (the distance between the two metal pieces on either side of the watch case that the strap attaches to). Your strap width should match this lug width measurement exactly. If your watch has a 20mm lug width, choose a 20mm strap.
Strap Length
Next, you’ll need to determine your strap length, which depends on your wrist size. Wrap a soft measuring tape around your wrist where the watch normally sits. Note the measurement in inches or centimeters. If you don’t have a tape, wrap a strip of paper around your wrist, mark where it overlaps, and measure that length with a ruler.
Once you know your wrist size, use the chart below to find your ideal strap length.
| Wrist Size (in) | Wrist Size (cm) | Strap Length (Long Part / Short Part) |
| 5 | 12.7 | 9.5 / 5.5 cm |
| 5.5 | 14 | 10 / 6 cm |
| 5.6 - 5.9 | 14.2 - 15 | 10.5 / 10.6 cm |
| 6 - 6.4 | 15.2 - 16.2 | 10.5 / 7 cm (Short) |
| 6.5 - 6.9 | 16.5 - 17.5 | 11.5 / 7.5 cm (Regular) |
| 7 - 7.4 | 17.8 - 18.8 | 11.5 / 8 cm |
| 7.5 | 19 | 12 / 8 cm |
| 8 | 20.3 | 12.5 / 8.5 cm |
| 8.5 | 21.6 | 13 / 9 cm |
| 9 | 22.9 | 13.5 / 9.5 cm |
Strap length is expressed as two measurements in centimeters (cm). The first number is the longer part on the 6 o'clock side. The second is the shorter part that attaches to the buckle on the 12 o'clock side.
Need Help? Feel free to reach out — we’re happy to help you get the correct strap spec for your watch.
Frequently Asked Questions
Q: My current strap fits well. Can I order the same length?
Yes. If your existing strap fits comfortably, you can use it as a reference. Simply measure both strap pieces and match those lengths when ordering.
Q: My wrist measurement falls between two sizes on the chart — which should I choose?
If your wrist size falls between two lengths, we recommend choosing the larger size for a more comfortable fit.
