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Who Made the "Cal. 11" ?

Who Made the "Cal. 11" ? I know that Vajoux made a lot of the Heuer movements and that Heuer had an unique toilet bowl singed bridge on the Valjoux 72 /72c . And if it was not Valjux did they make the 7740 and 7741 ?
Thanks to the OTD Braintrust for the help !

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