To ensure your watch strap fits comfortably and looks good, it's important to know the correct lug width for your watch . Otherwise, your chosen strap won't fit securely and will wobble or slip. This is both uncomfortable and risky.
But how do you measure the lug width of a watch? To determine the lug width of a watch strap, you can easily measure the distance between the two lugs with a ruler or caliper.
The common lug widths of a wristwatch
The appropriate width of a watch strap depends on the model. A common lug width for watches is 20 mm. However, depending on the model, this value varies between 16 mm and 24 mm , and even wider, although values below 16 mm are also possible .
Vintage or women's watches sometimes have narrower widths; larger and sporty watches can also have wider lug widths of 24 mm or more . Therefore, it's all the more important that you know the lug width before choosing the right watch strap.
That’s why the lug width of a watch strap is important
For a perfect fit, it is crucial that you know the lug width of your watch .
Only when the strap fits perfectly into the lug will it not wobble and sit comfortably . At the same time, the right combination of lug size and watch strap creates an attractive overall appearance . After all, even the most beautiful strap only looks aesthetically pleasing and appealing when it fits perfectly on the wrist.
For a harmonious overall appearance, it is therefore important to know the lug width when choosing a watch strap and to take it into account when purchasing.
What you need for the measurement
To measure the lug width of a watch strap you only need a few tools:
- A caliper: Ideally, you should use a caliper to measure the bridge width . This is because a caliper allows for particularly precise measurements in millimeters and accurately records even the smallest differences, which is especially important when measuring the bridge width.
- Alternatively, a ruler or folding rule: You can also measure the width between the lugs or bars of the watch using a ruler or folding rule.
With these basic tools, you can measure the lug width of your watch yourself and find a perfectly fitting strap.

Step-by-step guide to measuring the bridge width
Our detailed step-by-step instructions show you how to measure the lug width of your watch yourself using precise measuring methods.
Option 1 - measure the lug width on the old watch strap
- Step 1 - Remove the strap: Remove the strap from your watch.
- Step 2 - Check the inside of the strap: There's usually an engraved number or marking on the inside of the strap. This number tells you the width of the strap in millimeters.
- Step 3 - Note the width: Write down this value. This number corresponds to the lug width of your watch in millimeters.
Option 2 - measure the watch strap lug width on the watch
To measure the lug width directly on the watch, you will need a ruler or caliper. Follow these steps when measuring:
- Step 1 - Place the watch flat on a stable surface: the top of the case is facing up.
- Step 2 - Measure the lug width: Measure the inner width between the two lugs or bars using a caliper or ruler.
- Step 3 - Note the measured width in millimeters.
To avoid common measuring errors, it is important to make sure that you hold the measuring tool straight and parallel to the watch bars .
Choosing a suitable watch strap
Once you've measured your watch strap lug width , nothing stands in the way of choosing your desired strap. Use the following tips to find the perfect strap for your needs:
- The material : Consider which material best suits your lifestyle and personal preferences. Leather straps exude elegance and are well-suited for formal occasions, while nylon straps give your watch a casual and sporty look. Metal straps are considered particularly durable and long-lasting.
- The style : What style do you want to achieve with your new strap? Smooth black leather looks high-end and classy , while a vintage watch strap adds a casual touch to your watch . When choosing a color, make sure the strap matches the dial and case of your watch.
- Adaptability : Ideally, the watch strap you choose should not only be comfortable but also suit a variety of outfits and occasions . A versatile strap makes your watch a true all-rounder.
- Quality : It's always worth investing in a high-quality, well-crafted strap. A high-quality strap not only adds to the aesthetic appeal of your watch , but also ensures comfort and durability .
Conclusion
For maximum comfort and an attractive look, knowing the lug width of your watch strap is crucial. With our guide and the right tools, you can easily determine this value yourself and find your dream watch strap among Happystrapy's wide selection of high-quality watch straps . Your new strap is just waiting for you to discover it!
FAQ
Can I determine the watch strap lug width without a caliper?
A digital or mechanical caliper is the best choice for measuring the bridge width . Alternatively, you can use a ruler or folding rule , but these tools are somewhat less accurate than a caliper .
What to do if the measurements are between two sizes?
In this case, the rule of thumb is to choose the next larger size . Bracelets made of soft material, in particular, usually fit easily. A bracelet with too little play, on the other hand, looks unattractive.
Is the watch strap lug width the same for all watch brands?
No, the lug width of a watch depends on the design , the construction of the model, and other factors such as the case size and style of the watch . Therefore, it is important to measure the lug width for each watch individually.
What bridge width do I need?
The lug width required for your bracelet depends on the width of the opening between the lugs. Once you have measured the exact lug width, you can select the appropriate bracelet from Happystrapy .













