Datejust 31

How it wears

Wears true to its 31 mm case size

Rolex Datejust 31 measures 36.5 mm lug-to-lug on a 31 mm case, a lug-to-lug ratio of 1.18 against a database median of 1.18. That span is shorter than 96% of the 7,413 watches in this database and shorter than 96% of the 50 Rolex watches listed.

A flat wrist width of 41 mm (1.61 in) or more keeps it in the balanced range, and from 49 mm (1.93 in) it starts to look compact. Below 36.5 mm (1.44 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.