Mitsukoshi Mod on new 3861 Speedmaster?

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w-o-k

·Oct 23, 2021

Hi guys,

First time posting here but was hoping you guys could help me out. I've been holding onto a mitsukoshi dial and hands set but was looking to do the mod on the new 3861 Speedmaster. I know the movement is based off the 1861 but i heard around 50% of the parts weren't interchangeable. On top of that the watch itself is a bit slimmer and the subdials are stepped.

Has anyone had any experience doing the mod on the new speedies? Or has anyone (or any watchmakers here) had any experience with the movements side by side?

Thanks for the help!

 

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coreym

·Feb 15, 2022

Following

 

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eugeneandresson

·Feb 16, 2022

I guess the question is related to the dials and their feet size and positions…I also would like to know 👍

 

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DLT222

·Feb 16, 2022·Double D @ ΩF

calling @Archer

 

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Badwolf

·Feb 16, 2022

I always think mods are best done on older watches that have been picked up at a good price. Is there a particular reason why you want to do this on a 3861?

 

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bags1971

·Feb 16, 2022

One thing I know the sub dial hands are different on the 3861

 

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Evitzee

·Feb 16, 2022

DLT222

calling @Archer

I think he previously stated that he doesn't know if 1861 dials are compatible with the 3861 movement. It seems no one has tried it yet, or at least reported on it.

 

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Archer

·Feb 16, 2022

Evitzee

I think he previously stated that he doesn't know if 1861 dials are compatible with the 3861 movement. It seems no one has tried it yet, or at least reported on it.

Yep.

eugeneandresson

I guess the question is related to the dials and their feet size and positions…I also would like to know 👍

Yes, those are the first, but not the only things. Shape of the dials as they fit the cases, location of the sub-dial holes - other things would need to be verified as well.

 

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Aconitase

·Feb 16, 2022

Was wondering the same question but for old and new 321. Anyone know?

 

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zygarde

·Feb 17, 2022

Mitsukoshi mod is a frankenwatch move

 

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Badwolf

·Feb 17, 2022

Z zygarde

Mitsukoshi mod is a frankenwatch move

No, it really isn’t. It’s just a modification that can be changed back.

 

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texasmade

·Feb 17, 2022

Badwolf

No, it really isn’t. It’s just a modification that can be changed back.

Agreed.

As long as the person isn't trying to sell it as an authentic Mitsukoshi then whatever. They can do whatever they want with their watch.

 

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pdxleaf

·Feb 17, 2022·So on and so on and scoobie doobie doo

You probably know you will lose the warranty, if that's a consideration.

You can be a barn stormer and influencer!


Not a Mitsukoshi but a favorite 1861 of mine. (NFS)