Seiko Prospex 1968 Heritage Diver's GMT Watch 38.5mm

How it wears

Wears true to its 38.5 mm case size

Seiko Prospex 1968 Heritage Diver's GMT Watch 38.5mm measures 46.5 mm lug-to-lug on a 38.5 mm case, a lug-to-lug ratio of 1.21 against a database median of 1.18. That span is shorter than 56% of the 8,054 watches in this database and shorter than 43% of the 393 Seiko watches listed.

A flat wrist width of 52 mm (2.05 in) or more keeps it in the balanced range, and from 62 mm (2.44 in) it starts to look compact. Below 46.5 mm (1.83 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 10.6 mm thick it is on the slim side, thinner than 78% of the watches with a listed thickness.