Evolution 9 Spring Drive 5 Days 40mm

How it wears

Wears true to its 40 mm case size

Grand Seiko Evolution 9 Spring Drive 5 Days 40mm measures 47.9 mm lug-to-lug on a 40 mm case, a lug-to-lug ratio of 1.20 against a database median of 1.18. That span is longer than 62% of the 7,421 watches in this database and longer than 69% of the 202 Grand Seiko watches listed.

A flat wrist width of 54 mm (2.13 in) or more keeps it in the balanced range, and from 64 mm (2.52 in) it starts to look compact. Below 47.9 mm (1.89 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 11.8 mm thick it sits within the typical range, thicker than 40% of the watches with a listed thickness.