Strap Width: 16mm,18mm, 20mm, 22mm, 24mm. They're also a great choice for your dive watch as of course being made of rubber you don't need to worry about them getting wet. To check the size you need to have a look at the back of your current strap for any stamp that would indicate the size this will often just be a number i.e. 20, which will indicate 20 mm.
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