If you want to buy a new watch strap, width is all important! Lug-Width, that is…

The ‘lug width’ is simply the internal width measured between the lugs (where the watch strap fits) to the watch. Please check this, as a strap that is only 1 or 2 mm too thin or wide won’t fit your watch!

It is best to use a ruler (not a tape measure). There is an online database of 1000’s of watches called WatchBase that is a very useful website for finding the full specifications of your watch.