How to find the perfect size band or strap for your Luxury Watch.

How to Find the Perfect Strap Size for Your Luxury Watch

Finding the right watch strap size is one of the most important steps when replacing the strap or band on a luxury watch. A beautiful leather strap, rubber strap, or bracelet can completely change the look and feel of your watch, but it must fit the watch case correctly.

The key measurement you need is the lug width. This is the space between the two lugs on the watch case where the strap or bracelet attaches. If the lug width is wrong, the strap may not fit securely, may leave gaps, or may not attach to the watch at all.

Use this guide to learn how to measure watch strap size, how to read strap measurements, and how to choose the correct replacement strap for your luxury watch.

What Is the Lug of a Watch?

The lugs are the small projecting parts of the watch case that hold the strap or bracelet in place. They are located at the top and bottom of the watch case.

The lug width is the distance between the inside edges of the lugs. This measurement is usually listed in millimeters and determines what size watch strap or watch band you need.

For example, if the distance between the lugs is 20mm, you need a 20mm watch strap. If the distance between the lugs is 22mm, you need a 22mm watch strap.

How to Measure Watch Strap Size Using Our Guide

Measuring your watch strap size is simple when you use our printable watch band measuring guide. Follow the steps below to find the correct strap width before ordering a replacement watch band.

Step 1: Print the Watch Band Measuring Guide at 100%

Before measuring your watch band, print the guide at 100%. Do not use printer settings such as “shrink to fit,” “scale to fit,” or “fit to page.”

This is very important because changing the print scale can make the measurement chart inaccurate. For the most precise result, the guide must be printed at actual size.

Step 2: Do Not Measure Against Your Screen

Do not hold your watch or watch band up to your computer screen or phone screen. Screens display images at different sizes, so the measurement may not be accurate.

Always use the printed watch band size guide when measuring your strap width.

Step 3: Measure the Space Between the Lugs

Place your watch against the printed chart and measure the distance between the inside edges of the lugs. This is the lug width.

The lug width tells you the first and most important number in your watch strap size. For example, if the space between the lugs measures 20mm, you should shop for a 20mm replacement watch strap.

Step 4: Measure Your Existing Watch Band

You can also measure the width of your current watch band where it attaches to the watch case. This is another way to confirm the correct strap size.

For the best result, measure the end of the strap that fits between the lugs. This helps you choose a replacement strap that fits the watch case properly.

Step 5: Measure the Buckle Width

Many watch straps include two measurements, such as 22x16. The first number is the width of the strap between the lugs, and the second number is the width of the strap where it attaches to the buckle.

In this example, 22x16 means the strap is 22mm at the lugs and 16mm at the buckle.

This is especially important if you plan to reuse your existing buckle or deployant clasp on the new strap.

Step 6: Check the Strap Style and Attachment Type

Some luxury watches require a standard straight-end strap, while others may need a specialty strap, curved-end strap, notched strap, or a strap designed for a deployant buckle.

Before ordering, check whether your watch uses a standard strap or a special attachment style. If you are unsure, contact our team for help choosing the right watch band.

Step 7: Choose the Strap Material That Fits Your Watch

Once you know the correct watch strap size, choose a material that matches the look and use of your watch.

• Leather straps are excellent for dress watches, business wear, and formal occasions.
• Alligator or crocodile straps give a luxury watch a more refined and elegant appearance.
• Rubber straps are ideal for sport watches, dive watches, and casual everyday wear.
• Metal bracelets are durable, versatile, and often original to many luxury sports watches.

Common Watch Strap Sizes for Popular Luxury Watch Models

Many luxury watches use common strap widths, especially 20mm watch straps, 21mm watch straps, and 22mm watch straps. However, the correct strap size can vary depending on the exact model, year, and reference number.

Use the examples below as a helpful starting point, but always confirm the exact lug width of your watch before ordering a replacement strap.

20mm Strap Width

A 20mm watch strap is one of the most common sizes for luxury watches. It is often found on classic, sport, and everyday luxury watch models.

• Rolex Datejust 36
• Rolex Daytona
• Rolex Submariner older 40mm models
• Omega Speedmaster
• Omega Seamaster
• IWC Pilot’s Watch Mark XVIII
• TAG Heuer Carrera
• Tudor Black Bay 58

21mm Strap Width

A 21mm watch strap is less common than 20mm or 22mm, but it is used on some newer luxury watch models. Because this is an in-between size, it is especially important to measure carefully.

• Rolex Submariner newer 41mm models
• Select newer Rolex 41mm models

Do not force a 20mm or 22mm strap into a 21mm lug width unless the strap is specifically designed to fit. Using the wrong size can affect the look, comfort, and security of the strap.

22mm Strap Width

A 22mm watch strap is often used on larger luxury watches, sport watches, aviation watches, and chronographs. This strap width gives the watch a stronger wrist presence and is common on larger case sizes.

• Breitling Navitimer
• Tudor Black Bay 41mm models
• Select larger TAG Heuer Carrera Chronograph models
• Select sport and aviation watches with larger cases

24mm Strap Width and Larger

Some oversized luxury watches and sport watches may use a 24mm watch strap or larger. These sizes are commonly found on larger case designs and watches with a bold wrist presence.

If your watch appears to need a 24mm, 25mm, 26mm, or larger strap, measure carefully and confirm the exact model before ordering.

Why Strap Measurement Matters for a Perfect Fit

Choosing the correct watch band size is important for comfort, security, and appearance. A strap that is too narrow can leave visible gaps between the strap and the lugs. A strap that is too wide may not fit between the lugs at all.

The right strap should sit securely between the lugs, attach properly to the spring bars, and match the style of the watch. This helps your luxury watch look balanced and feel comfortable on the wrist.

Strap measurement is also important if you plan to reuse your original buckle or deployant clasp. In that case, you need to know both the lug width and the buckle width before selecting a replacement strap.

Final Tip: Always Confirm Before Ordering

Knowing how to measure watch strap size makes it much easier to find the right replacement strap for your luxury watch. Start by measuring the lug width, confirm the buckle width if needed, and check whether your watch requires a specialty strap.

If you are unsure which strap size you need, contact our team before purchasing. We can help you find the correct watch band for your luxury watch so it fits properly, looks beautiful, and feels comfortable on the wrist.