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A. Lange & Söhne

Me too but...

 

The idea was to be able to enlarge the barrel in order to increase the power reserve. Power reserve of the new caliber is 72 hours while the 3/4 plate movement  has a power reserve of 46 hours. And the main trouble of a  3/4 plate movement is its lay-out  which prevents to do this kind of change.

And, I agree with you, the main advantage of a 3/4 plate movement... is also its lay-out which makes it so beautiful.

Beauty or performance ? That's a good question but, like you, I would have kept the 3/4 plate.

Fx

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