Accessories Size Guides

Watches, hats, belts, bracelets and glasses — sized from a simple measurement, with US, UK and EU equivalents.

Watch Size Calculator

Your wrist measurement tells you the watch case diameter, strap length and lug width that will look and fit right.

Measure around your head and convert it to a US/UK fitted hat size, EU centimetres and S/M/L.

Your belt size isn't your waist size — it's usually two inches larger. Enter your trouser waist to get it right.

Measure your wrist and add the right amount of room for a snug, comfortable or loose bracelet fit.

Decode the 52▢18-140 numbers on your frames and find the lens width that suits your face.