Constellation Observatory Co-Axial Master Chronometer 39 4 mm

How it wears

Wears true to its 39.4 mm case size

Omega Constellation Observatory Co-Axial Master Chronometer 39 4 mm measures 47.2 mm lug-to-lug on a 39.4 mm case, a lug-to-lug ratio of 1.20 against a database median of 1.18. That span is longer than 54% of the 7,413 watches in this database and longer than 41% of the 487 Omega watches listed.

A flat wrist width of 53 mm (2.09 in) or more keeps it in the balanced range, and from 63 mm (2.48 in) it starts to look compact. Below 47.2 mm (1.86 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 12.23 mm thick it sits within the typical range, thicker than 50% of the watches with a listed thickness.