Hiëronymus
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Caliber 30-255 PS - Tension on the going train
In the new caliber 30-255 PS the parallel arrangement of its two mainspring barrels is a special feature of
the movement.
The diameter of the handwound caliber inreased from 21.9mm to 31mm compared tot he 215 PS.
The extra room left a void and Patek Phillipe chose for a second spring barel to fill this void. More of a estheticall choice rather than a technical one explains Philip Barat on the owners platform.
While up untill now Patek Philippe used spring barrels with a very low torque compared to other manufacturers,
the parallel barrels increase the torque of the
movement by adding the torque of the two barrels (pressrelease)
This increases accuracy but,
With a higher torque comes higher tension on the going train, especially the pinions, and consquently more wear to it. That would not be a technical step forward.
Or not?
Caliber 30-255 PS - Tension on the going train
In the new caliber 30-255 PS the parallel arrangement of its two mainspring barrels is a special feature of the movement. The diameter of the handwound caliber inreased from 21.9mm to 31mm compared tot he 215 PS. The extra room left a void and Patek Phill...
