Finding your strap size

The size of your required watch strap will be determined on the lug width of your watch.

You can easily determine the lug width by measuring the gap between the two metal points (lugs) on your watch - where the band meets the body and you should be able to do this without removing the existing strap.

What if I don't have my watch or a ruler close by?

If you aren't able to measure your watch, simply google your watch brand and model number followed by "Lug width".

For example Omega speedmaster lug width and Timex weekender lug width

Alternatively - you can use our Watch Strap Sizing guide to find the lug width for your watch.

What if my watch is an odd width, such as 16mm,19mm, 21mm, 23mm or 25mm?

If your watch is an odd width, you should be fine rounding up to the next even number (i.e. if your watch is 19mm, use a 20mm strap), as the straps will flex to fill the 0.5mm difference on each side.

Posted on 18 January 2018 by Brad Farleigh

Questions & Comments (11)

Danille wellington petite 28mm

what would be the strap size?

The 28mm Daniel Wellington 'petite' range requires a 12mm strap, however unfortunately we don't have any straps of that size sorry!


Hi there Looking to get a NATO strap for the above Casio - but internet specs are a little confusing - 22mm ok? Cheers

Hi Patrick, The specs are certainly confusing!
The guys over at Watchuseek can 100% confirm the lug width of the Casio MDV106-1A  is 22mm.

Rolex Submariner

Hi how do you fit the strap on to submariner ?

Hi Max - I found this youtube video which runs through the process -

Casio W-800H

Hi, i have a Casio W-800H. i want a NATO strap for comfort and reliability, lug to lug inside is roughly 17/18mm. Thanks Lewis

Hi Lewis, You're correct - the Casio W-800H will fit any of our canvas 18mm straps, however the leather straps may be too thick for the clearance so I'd steer away from those. Cheers, Brad

Omega Speedmaster

What size do I need?

Hi Sam, The full sized speedy pro takes a 20mm strap, and the 'reduced' will take a 18mm strap.

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