Split Seconds Chronograph A fine, heavy deck watch with split seconds chronograph

Gehäuse
Silver.|Very good.

Zifferblatt
Enamel.|Very good.

Werk
2/3 plate movement, Swiss Patent 54714 ("Mécanisme de commande perfectionné de la roue de compteur dans les mouvements à chronographe-compteur" / "Improved mechanism for controlling the counting wheel in chronograph counter movement") lever escapement, screw compensation balance.|Very good, capable of running, cleaning recommended.

WERKNR:16119

caseId:368785

dimension:54 mm

circa:1900

weight:153

country:Switzerland

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A split-seconds chronograph (also called a rattrapante chronograph or double chronograph) is a stopwatch with an additional, second chronograph seconds hand that allows for the measurement of intermediate times without stopping the main timing mechanism. Normally, the split-seconds hand aligns perfectly with the regular chronograph seconds hand and runs invisibly alongside it. An additional pusher (usually at the 10 o'clock position) stops the split-seconds hand while the main hand continues to run. The intermediate time can then be read. Pressing the rattrapante pusher again instantly sets the split-seconds hand in the same position as the main hand, and it resumes running. Due to its intricate mechanical heart-shaped clamp mechanism, this complication is considered the pinnacle of watchmaking.