Ну так попробуйте поставить DD5100 на базовый Федин калибр и чтобы все работало.
Цитата:
There was no existing perpetual calendar module that could meet these requirements; the Dubois-Dépraz at 39 mm wouldn’t fit with the 42 mm diameter we were aiming for. But we examined the Dubois-Dépraz minutely, and that gave us our point of departure. We rebuilt everything with just one aim in mind: eliminating the unnecessary to make assembly, which is the greatest challenge, as simple as possible.
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