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Re: Hour hand caliber 675 [message #13652 is a reply to message #13651] Thu, 03 September 2020 12:14 Go to previous messageGo to previous message
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Registered: May 2019
Location: Cincinnati
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Well, there’s a first. Never seen a 15J duo dial—only 7J. And the 7J is the only one listed as duo dial in the book. The cannon pinion will be the same on both of yours.

The different one is on the regular 905 & 907, which are not duo dial. I think even they will share hands (at least hole size). The difference in pinion, wheels, etc. is largely sizing below the dial I’d assume, because of layout for duo dial vs center.


My two caveats:
1) I'm wrong many times a day --just ask my wife!
2) Always seeking to learn more

[Updated on: Thu, 03 September 2020 12:15]

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