Lug width
How do you measure the lug width?
The lug width is the width of the strap where it is attached to the watch. It is given in millimetres and is often stamped on the inside of the old strap. If you no longer have it, measure the gap between the two lugs of the watch. Measure to the exact millimetre: if you measure 20 mm, you need a 20 mm strap. The lug width is also called strap width or band width.
If the end of your strap is straight, you will find a wide choice of watch straps in our shop. The easiest way is to choose the lug width in the filter, so that only straps of this width are shown. You can then add more filters.
Buckle
Measuring the width at the buckle
The pictures show where to measure the width, at the buckle and at the watch. A calliper, digital or mechanical, is the most precise. A tape measure or a ruler also works, just a little less precisely. Common widths are, for example, 18, 19, 20, 21 or 22 mm.
Important: there are no half sizes such as 20.5 mm, the width is always a whole number. The watch manufacturer often states this value as well.
Length
Which strap length do you need?
Four values decide the right length.
- What is your wrist size?Measure it with a flexible tape measure.
- What is the diameter of the watch?Measure the watch from spring bar to spring bar.
- The overlap (allow 25 to 35 mm)This is the part of the strap that later goes through the keepers.
- Do you wear your watch loose or tight?If you like to wear it loose, add about 10 mm to the overlap.
2. Watch diameter
3. Overlap
4. Worn loose
Once you have your values, simply add them up.
Formula
Wrist size - watch diameter + overlap + 10 mm (if you wear the strap loose)
Example
- Wrist size = 200 mm
- Watch diameter = 40 mm
- Overlap = 30 mm
- I wear the strap loose = 10 mm
200 mm - 40 mm + 30 mm + 10 mm = 200 mm (20 cm)
In our example, choose a strap of about 20 cm. This length is the two parts A and B added together. If part A is 125 mm and part B is 75 mm, the strap fits your wrist. The example shows the ideal case. A tolerance of about 1.5 cm either way is normal.
Tip: if you still have the old strap, measure its two parts directly. That gives you the right lengths straight away.
Length A + length B
Search
How to find the right strap
- Measure the lug width (see the picture above).
- Work out the length you need (see the pictures above).
- In the category you want, choose your lug width in the filter.
- Add more filters, for example colour or length.
- Look through the results and click the strap you like.
This quickly leads you to the right strap. Our guide how to change a watch strap shows how to fit it.
Special case
Straps with special fittings
The search is harder if your watch has a special fitting, which means the end of the strap is not straight. In this case, usually only a strap made for this watch model fits.
Example 1
Example 2
To find a replacement strap, you need the model number of your watch. With this number you will find the right strap in the brand category. Our guides explain where to find the number on Casio and Skagen watches.
Guides
Cannot find your model in our shop? Write to us using our contact form. We will be happy to send you a non-binding offer by email, with a link to the replacement strap.
If the manufacturer no longer makes a strap for this model, we will let you know by email as well. Your ideas for improving our service are also welcome via the contact form.
We hope this guide helps you with your search. You will find all our watch strap guides in the overview.