For Americans the watch industry is hard to work with. Why? Well, it is all in metric. But of course it is dominated by the Swiss and so here is a "guide" to assist you in coming to terms with your watches size: This information is from Lussori.com. Get out your metric rulers.
As a guideline for watch thickness and matching that with a size reference.
Thin 4-6mm
Average 6-12mm
Full size 12-14mm
Statement 14-18mm
When we talk of Large or Jumbo watches we are talking about watches that are both thick and with large diameter watch faces...Their is really no formal industry standard with regard to size classifications as there is with types of watches.
