Playless Gear Form

A peek at the new playless gear in the Rolex caliber 7140.

Doing away with the inner support structure between the sprung flanges found in the playless gears of the Rolex Cosmograph Daytona and Rolex Yacht-Master II, the gear that drives the subsidiary-second hand in the Rolex 1908 appears to employ a pattern of hollowed-out, sprung teeth with the occasional, interstitial solid tooth in a ratio of 3:1.

Image credit Rolex SA