Roadmaster Marine GMT 40mm

How it wears

Wears true to its 40 mm case size

Ball Roadmaster Marine GMT 40mm measures 47.8 mm lug-to-lug on a 40 mm case, a lug-to-lug ratio of 1.19 against a database median of 1.18. That span is longer than 60% of the 7,413 watches in this database and longer than 25% of the 222 Ball 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 47.8 mm (1.88 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 14 mm thick it is on the thicker side, thicker than 80% of the watches with a listed thickness.