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Montblanc

I didn’t know anything about spherical springs and during my research I have only found that JLC

 

used the concept of the spherical spring. Do you know if JLC also invented it? What are the reasons? Better regulation or accuracy? Or better power transmission? Or is this done just for design reasons?

Sorry for the many questions. I don't want to make work for you, but maybe you have a few answers ready? ☺️

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