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Double Split

A. Lange & Söhne has liberated the rattrapante chronograph from its confinement to 60-second lap times by creating the first genuine double rattrapante for the wrist. The Double Split has two rattrapante hands: one for the seconds and one for the minutes. Both chrono and both rattrapante hands are fly-back hands. Inside Information: The intricate complication of a rattrapante sweep-seconds hand in a chronograph has always been an awesome horological accomplishment for short-time measurements. Unfortunately, the possibility of taking a lap-time reading with the rattrapante sweep-seconds hand during an ongoing measurement was restricted to the 60-second scale and, thus, to laps of less than one minute. Now, this limitation has been overcome. In the Double Split, the principle of the rattrapante sweep-seconds hand has been extended to the jumping-minute counter. This means that for the first time ever, comparative lap measurements of up to 30 minutes—in Formula 1 races, for example—are now possible in a classic, purely mechanical wristwatch.

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