Chronograph

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Flyback / Retour-en-vol Chronographs



top row: a pair of vintage Citizen 8110A pieces
bottom row: Blancpain Leman and Zenith El Primero Striking Tenth
 
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Jumping Seconds / Foudroyante / Blitzende Sekunde / Diavoletto Chronographs



left: Girard-Perregaux Sport Classique (also a rattrapante)

right: Zenith El Primero Striking Tenth (also a retour-en-vol and properly, a semi-foudroyante)
 
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Perpetual Calendar Chronograph


I’m a chrono fan and LOVE your chrono collection.

This is one of my dreams. Out of circulation now, made a request to see if the manufacture can make one for me. It’s in WG but love it in RG/YG.
 
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I’m a chrono fan and LOVE your chrono collection.

This is one of my dreams. Out of circulation now, made a request to see if the manufacture can make one for me. It’s in WG but love it in RG/YG.

Nice.

why it is called a twin chrono?
 
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Nice.

why it is called a twin chrono?

Twin chrono for ability to time two events and the difference in time between them.

Two individual timed chronographs at the bottom subdials with a third register acting as a split-second differential at the upper subdial. It’s a monophsher: The first push starts the two bottom subdials where they begin timing. The second push stops the dial on the lower left and begins the split-recording dial on the upper subdial. The third push stops the second time (lower right) and the split time (upper). The fourth and final push brings everything back to zero.

All three of the subdials have both minute and seconds and hands in contrasting red and white, so timing can be hours long.

Designed for yacht racing matches; I will never need it for this type of event 😀
 
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So more complicated than a simple rattrapante? :

Hmmm.

the YMII chronograph is good only for the start of race? This one times the entire race for two yachts in a regatta?
 
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This one times the entire race for two yachts in a regatta?

Yes. If you are ever in the situation where you would need this complication, please bring me along😀