Seiko 5 37mm

How it wears

Wears true to its 37 mm case size

Seiko Seiko 5 37mm measures 42.5 mm lug-to-lug on a 37 mm case, a lug-to-lug ratio of 1.15 against a database median of 1.18. That span is shorter than 85% of the 7,413 watches in this database and shorter than 91% of the 390 Seiko watches listed.

A flat wrist width of 48 mm (1.89 in) or more keeps it in the balanced range, and from 57 mm (2.24 in) it starts to look compact. Below 42.5 mm (1.67 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.

At 10 mm thick it is on the slim side, thinner than 84% of the watches with a listed thickness.