Watch fit and sizing

Everything you need to know to buy a watch that fits, built on the measurements in the almanac.

• How to measure your wrist for a watchCircumference and flat width, with a strip of paper and a ruler.
• What is lug-to-lug?The measurement that decides fit, and why case diameter misleads.
• Watch size chart by wrist sizeThe largest lug-to-lug and typical case size for every wrist.
• Average wrist size for men and womenFrom 6,068 wrists measured by the US Army.

Research: Case diameter is a poor guide to watch size, our analysis of every watch we've measured.