How to Properly Measure Watch Lug Width

How to Properly Measure Watch Lug Width

If you’re shopping for a new watch strap, one of the most important steps is correctly measuring your watch’s lug width. Lug width refers to the internal distance between the two lugs of a watch case where the strap or bracelet attaches. Getting this measurement right ensures a secure fit and a professional look for your new strap. Here's a simple guide on how to properly measure your watch lug width like a pro.

1. Understand What “Lug Width” Means

Lugs are the small protruding arms on the top and bottom of the watch case. The lug width is the space between these arms, not the entire width of the case. This space typically ranges from 18mm to 24mm on most watches, though some may be narrower or wider.

2. Use a Digital Caliper for Best Accuracy

The most accurate tool for measuring lug width is a digital caliper. Carefully place the caliper’s jaws inside the lugs and read the measurement in millimeters. Avoid applying too much pressure to prevent scratching or damaging your watch.

3. Use a Ruler in a Pinch

If you don’t have a caliper, a small millimeter ruler will do. Place the edge of the ruler between the lugs and try to align it precisely. Be sure to measure only the inside distance and not the outside of the lugs.

4. Check the Watch Manual or Manufacturer’s Website

Some watch brands list lug widths in the watch’s specifications. If you're unsure about your measurement, verifying this detail on the manufacturer's website can save time and hassle.

5. Why Lug Width Matters

Choosing the wrong lug width can result in a strap that doesn’t fit or looks awkward. A strap that’s too small will slide around or leave gaps. One that’s too wide simply won’t fit. Correct lug width gives you a secure attachment, better aesthetics, and comfortable wear.

Final Tip: Double-Check Before Ordering

Always double-check your measurement before buying a new strap. Many straps come in specific widths—like 20mm, 22mm, or 24mm—and a few millimeters make all the difference.

By taking a moment to measure correctly, you’ll get the most out of your new strap and ensure your watch looks and performs its best.