How to Properly Measure Your Watch Lug Width and Choose the Right Strap
If you’re shopping for a new watch strap, one of the most important steps is knowing your watch’s lug width. It’s the key to making sure your new strap fits securely, looks great, and feels comfortable.
Whether you're buying handmade leather, rugged NATO, or quick-release rubber straps from WIS, here’s your complete, easy-to-follow guide to measuring lug width and choosing the perfect strap.
✅ What is Lug Width?
Lug width is the distance between the two lugs (the “arms” or “horns” of your watch case where the strap attaches).
📏 Example: A Rolex Submariner has a standard lug width of 20mm.
Your strap’s width must match this measurement exactly for a secure, flush fit.
✅ Why Getting the Right Size Matters
✔ A too-wide strap won’t fit between the lugs
✔ A too-narrow strap will shift around and look awkward
✔ The right width = a seamless, factory-quality look
✅ How to Measure Lug Width: Step by Step
Option 1: Check Manufacturer Specs
Most brands list lug width in their watch specs online.
Option 2: Use a Digital Caliper
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Open the caliper jaws.
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Place them between the inside of the lugs.
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Read the measurement in millimeters.
✅ Most common sizes are 18mm, 20mm, 22mm, and 24mm.
Option 3: Use a Ruler (Quick & Easy)
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Lay the ruler flat across the inside of the lugs.
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Count the mm marks between the lugs.
✅ Not as precise as a caliper, but works in a pinch.
✅ Common Lug Widths for Popular Watches
✔ Rolex Submariner: 20mm
✔ Omega Seamaster: 20mm or 22mm (depending on model)
✔ Tudor Black Bay 58: 20mm
✔ Seiko Divers (e.g., SKX): 22mm
✔ Field Watches: often 18mm or 20mm
📌 Pro Tip: Always measure YOUR watch! Variants and special editions can have different sizes.
✅ What About Strap Length?
While lug width is critical for fitting the watch head, strap length ensures it fits your wrist comfortably.
Most straps come in standard lengths:
✔ Regular (~115/75mm) for 6.5–7.5" wrists
✔ Long for larger wrists
✔ Short for smaller wrists
NATO straps are typically one-size-fits-most, easily adjustable.
✅ Choosing the Right Strap Material
⭐ Rubber Quick-Release:
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Waterproof, perfect for sports/dive watches
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Easy to swap with built-in case pins
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Soft, non-toxic silicone blend (like ours at WIS)
⭐ Handmade Italian Leather:
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Classic, luxurious, perfect for dress watches
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Ages beautifully over time
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Choose tan, espresso, black, or other colors
⭐ NATO Straps:
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Durable, military-inspired
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Great for casual and outdoor wear
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Multiple color and stripe options
✅ Why Quick-Release is a Game Changer
At WIS Watch Straps, many of our rubber and leather straps feature quick-release built-in case pins.
✔ No tools needed
✔ Swap styles in seconds
✔ Protect your watch lugs from scratches
✅ Final Tips for Choosing Your Strap
✅ Always match your lug width
✅ Consider your wrist size for strap length
✅ Pick the right material for your lifestyle
✅ Think about color—complement or contrast your dial
✅ Ready to Upgrade Your Watch?
At WIS Watch Straps, we make it easy to find your perfect fit.
⭐ 18mm, 20mm, 22mm, and 24mm widths
⭐ Handmade Italian leather, durable NATO, and premium quick-release rubber
⭐ Dozens of colors and styles to match your watch—and your life.
👉 Explore the collection today at WISStraps.com and make your timepiece truly yours.
