Richard Mille RM 65-01 Ti Split-Seconds Chronograph

The rattrapante — split-seconds chronograph — represents one of horology's most demanding complications, requiring a second chronograph hand that can be stopped independently to capture an intermediate time whilst the primary hand continues uninterrupted. It is a complication that separates serious chronograph manufactures from the merely competent, demanding movement architecture of exceptional precision and robustness.

The RM 65-01 delivers this complication within Richard Mille's signature tonneau case in grade 5 titanium — a material choice that prioritises the maison's governing weight reduction philosophy above precious metal convention. Against the rose gold variant's warmth, titanium presents the rattrapante mechanism with a cooler, more austere authority entirely consistent with the complication's instrumental origins.

The manually-wound calibre RMAC4 exposes the split-seconds architecture in full transparency — column wheel, rattrapante arbor, and differential mechanism presented as both functional components and aesthetic centerpieces. A complication with 19th century roots, rehoused without compromise in the 21st century's most uncompromising case.