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Creation of the Watch
This is when the Watch was first invented by Abraham-Louis Perrelet (self-winding mechanism). https://en.wikipedia.org/wiki/Watch -
Revision: Watch Podometer
Abraham Develops the 1st podometer, and creates the 1st Cylinder Watch.
https://www.perrelet.com/en/brand/history -
Re-invention: Chronograph Counter (Watch)
Abraham's Grandson presents a chronograph counter for physics and astronomy with flyback hand. -
Develop: Double Rotor (Watch)
The Perrelet House develops the first "Double Rotor" caliber: a system unique in it's kind, which connects the winding weight of the automatic system to a rotor on the dial side.
https://www.perrelet.com/en/brand/history -
Period: to
Revision: Turbine Model, & Anniversary of the Double Rotor
Perrelet finally creates a design that is superb and overall better than any other template the Perrelet house has ever used; Caliber P-481
https://www.perrelet.com/en/brand/history
