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Vintage Heuer Discussion Forum
The place for discussing 1930-1985 Heuer wristwatches, chronographs and dash-mounted timepieces. Online since May 2003. | |||||||
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Hi Al,
some additional research led to the following information: The date functions of the 7765 are NOT built with interchangable parts of the 7750 family. The part (ISO-)number 50.040 is called 'date unlocking yoke'(general number 2632). Please have a look at side 4 of the pdf-file shown at the link below. Hope this will help.
Cheers, Martin
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