Watch Strap Size Guide

When buying a new replacement strap when your old strap ages or you want to change the style, choosing the correct strap width is crucial to the appearance and wearing comfort of your watch. This article will show you how to correctly choose the strap width for your watch.
1. Measure the lug width
To choose the correct strap width for most watches, you first need to measure the width of your watch's lug. The lugs refer to the two parts of the watch case that hold the strap in place. You can use a tape measure or a width measuring tool to accurately measure lug width. When purchasing a new watch strap, you can choose a watch strap with the corresponding width based on the actual measured width.

2. Measure the width of the original strap interface
If you need to replace the strap, many straps also have dimensions marked on them. You can refer to the dimensions marked on the original strap. You can also use a tape measure or a width measurement tool to accurately measure the width of the original strap interface, and select a strap with the corresponding width based on the actual measured width. As shown below:





Most watch straps can be measured using the above two methods. Of course, there are also individual brands and individual styles of watches that cannot be generalized, such as cartier ballon bleu. The cartier ballon bleu strap width measurement method is slightly different. When measuring, you need to include the edge width of the lug.
There is another way to choose the width of the cartier ballon bleu strap. Choose the strap with the corresponding width according to the diameter of the dial, as shown below:

Strap size