The easiest way to measure your watch strap is to simply check the inside of your old strap, most leather straps have the sizes imprinted on the inside of the strap as pictured.

 If your strap does not have the size imprinted on it or it has worn down or you simply do not have the watch strap, you can measure the distance between the watch case itself (lug to lug). All Hirsch and WatchObsession watch straps are measured in millimeter sizes. Use a ruler or a metric (mm) units to measures the distance between the case or lugs of the watch as pictured below.

Measure the width between the extended parts of the case in mm, this is the size that needs to be ordered, ie, the Omega watch pictured above requires a 20mm strap.

All strap sizes listed on www.WatchObsession.co.uk refer to the width of the strap where it attaches to the watch, lug width.

** It is not adviseable to measure the width of the current strap as they can shrink over time **