After some basic introductions and manipulations of vintage valjoux 23, modern 7750 and module type Dubois Depraz 2020, the chronograph course come to an end. Today we introduce Breguet hairspring and doing some practice of forming the double bend. Next week we'll back to our own project and try to finish as much as possible before the winter break.
Waiting for the moment when module type chronograph Dubois Depraz 2020 engages with ETA 2801 movement. |
Breguet hairspring in blue steel from Le Locle watchmaking school in the past gives us motivation! |
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