Watch strap size guide
Every watch has a lug width — the gap between the lugs in millimeters. Get the right size and you'll find thousands of affordable straps starting at $3.


How to measure your lug width
Measure the gap between your watch's lugs with a digital caliper or a ruler. The number in millimeters is your lug width. You can also look up your watch model online — the lug width is always listed in spec sheets. Common sizes are 18mm, 19mm, 20mm, 22mm, and 24mm.
Rolex Submariner, Omega Seamaster 300M, Tudor Black Bay 58
Seiko SKX007 / SKX009, Tudor Black Bay 41, Panerai Luminor 44mm
Grand Seiko SBGW series, Omega De Ville, Cartier Santos (medium)
Tudor Black Bay 36, Rolex Datejust 36, Rolex Explorer 36mm
Panerai Luminor 47mm, Panerai Radiomir 47mm, IWC Pilot's Watch 46mm
Cartier Tank Solo (smaller), Cartier Ronde Solo, Various vintage dress watches
Cartier Tank Must (some references), Various vintage dress watches, Some Hamilton Boulton models
Omega Planet Ocean 43.5mm, Vintage Rolex Submariner (some references), IWC Big Pilot 43mm
Panerai Luminor 47mm, Hublot Big Bang 45mm, Bell & Ross BR01
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