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Jaeger Lecoultre Powermatic E 163 / Futurematic E 510. Two different power reserve watches

 

Two very different ways to display it. 






Classic and conventional on the Powermatic E 163, more original on the Futurematic E 501. 

The ancesters of the Master Reserve de Marche we now, nowadays. 

And we were in the Fifties, here! 

Best,

nicolas

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