Use a watch you already own.
A familiar watch is a useful reference point. Photograph it on your wrist from a comfortable distance. Tell us whether you want the next one to look more discreet, similar or more prominent.
A size number is only a starting point.
Our catalogue filters use supplier-listed case dimensions where available. Those measurements need confirming on the actual item. Ask for wrist photos and complete measurements rather than deciding from one number alone.
There is no prize for choosing bigger.
A watch should feel like yours. Smaller, larger, vintage-looking, bright green: the right choice is the one you are excited to wear, not the one the comments section approves of.