Richard Mille RM 43-01 Tourbillon Split-Seconds Chronograph Ferrari 42.9mm

How it wears

Wears true to its 42.9 mm case size

Richard Mille RM 43-01 Tourbillon Split-Seconds Chronograph Ferrari 42.9mm measures 51.2 mm lug-to-lug on a 42.9 mm case, a lug-to-lug ratio of 1.19 against a database median of 1.18. That span is longer than 91% of the 8,010 watches in this database and longer than 95% of the 38 Richard Mille watches listed.

A flat wrist width of 57 mm (2.24 in) or more keeps it in the balanced range, and from 69 mm (2.72 in) it starts to look compact. Below 51.2 mm (2.02 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 17.1 mm thick it is on the thicker side, thicker than 98% of the watches with a listed thickness.