Cosmograph Daytona 100th Anniversary 24H Hours of Lemans

In Context

At 40 mm it is sized to the current mainstream: 40 mm is the median across every watch measured in this catalogue. At 12.2 mm it is a tall case, and it will catch on a cuff. The case back is open, so the movement is visible without taking the watch apart, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 72 hours of reserve puts it well past a weekend — several days off the wrist and it is still going. At 28,800 vph the seconds hand advances 8 times a second.

126529LN-0001 stands on its own in this catalogue — no other reference here shares its base number. It pairs a black sunburst dial with a ceramic, white gold case. Introduced in 2023. Beyond the time it carries a chronograph.

Modified version of the 4131 with 24-hour totalizer.

1 other watch in the library runs the Rolex 4132.

Rolex

Cosmograph Daytona 100th Anniversary 24H Hours of Le Mans / Yellow Gold

126528LN-0001 · 40 mm