-The average man's watch measures 35 mm, 36 mm and 37 mm. Models like the Rolex Datejust and the Rolex Day-Date President.
-Sports watches range in size from 38-42 mm. Models like Rolex Submariner and the Rolex Yacht-Master.
-Women's watches range from 23-25mm for models like Rolex Dates and Rolex Datejusts. More modern models range from 26-30mm like Rolex Air-Kings and Rolex Oyster Perpetuals. Many vintage men's models are now worn by women as a mid-size style.
-Many of todays modern watch brands have transitioned into a larger case model. Popular models like the Patek Philippe Nautilus, and Audemars Piguet Royal Oak and Rolex models vary in size from 38-44 mm.
On the Wrist