Iwc caliber 70

Greetings community, I would like to know more about this caliber 70, because I have not found almost any information, if anyone has any information I would be grateful, thank you very much and see you soon

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Is the movement original to the case? Full disclosure, not an IWC expert, but it looks an awful lot like like an IWC Pocket Watch Movement.  It looks remarkably similar to this one as well.

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