Astron GPS Solar 2026 Limited Edition 43.3mm

How it wears

Wears true to its 43.3 mm case size

Seiko Astron GPS Solar 2026 Limited Edition 43.3mm measures 49.5 mm lug-to-lug on a 43.3 mm case, a lug-to-lug ratio of 1.14 against a database median of 1.18. That span is longer than 79% of the 7,421 watches in this database and longer than 87% of the 390 Seiko watches listed.

A flat wrist width of 55 mm (2.17 in) or more keeps it in the balanced range, and from 66 mm (2.60 in) it starts to look compact. Below 49.5 mm (1.95 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 13.4 mm thick it sits within the typical range, thicker than 69% of the watches with a listed thickness.