The split-seconds chronograph is one of the three most difficult complications to master, alongside the tourbillon and the minute repeater. It takes a highly sophisticated mechanism to control the two chronograph hands, one of which may be stopped to measure an intermediate or lap time or retain a reference time while the other continues its course unaffected, even by fractions of a second. When released again, the split-seconds hand instantly catches up with the primary hand and the two stacked hands move on together.
Manually wound mechanical movement.
CHR 29-535 PS Q.
Instantaneous 30-minute counter.
Day, month, leap year and day/night indication in apertures.
Date by hand.
Dial: silvery opaline, applied gold hour markers with luminescent coating.
18K gold dial plate.
Alligator strap with square scales, hand-stitched, shiny chocolate brown, fold-over clasp.
Case: rose gold.
Interchangeable full back and sapphire-crystal case back.
Water resistant to 30 m.
Case diameter: 40.2 mm.
Height: 14.3 mm.