Pilot's Mark XVIII 40mm

How it wears

Wears larger than its 40 mm case suggests

IWC Pilot's Mark XVIII 40mm measures 51 mm lug-to-lug on a 40 mm case, a lug-to-lug ratio of 1.27 against a database median of 1.18. That span is longer than 89% of the 7,413 watches in this database and longer than 60% of the 42 IWC watches listed.

A flat wrist width of 57 mm (2.24 in) or more keeps it in the balanced range, and from 68 mm (2.68 in) it starts to look compact. Below 51 mm (2.01 in) the lugs are likely to overhang the wrist. Flat wrist width is measured straight across the top of the wrist, not around it.