Help identifying a movement. F.H.F 66-4 ?

[DerekChasse]

Hi all,

New to the hobby and I was wondering if I could get some assistance in identifying a movement.

https://imgur.com/a/Z2dbvPH

I see a logo that looks to be for F.H.F and a 66-4 engraving below that.  I also see H113 engraved across the train wheel bridge.

This is a 25 jewel, manual wind, movement on a Loyal Prince de luxe.  

I was a bit clumsy with the dial side incabloc spring and will need to get replacements likely and would love to figure out what movement this is.  I don't see much information about this online and it seems to be this here on ranfft https://ranfft.org/caliber/5648-FHF-66-4 but I'm almost certain that mine has more than 17 jewels.  Almost all are capped, and the barrel is jeweled as well.  Do the capped jewels "count as one"  and the 25 is just marketing?

With the incabloc sprint, I accidentally snapped one of the sides of the forked spring off.  Best practice would be to replace the spring I'm sure, but how interchangeable are they?  

Thanks for helping out a rookie.

 

[AndyGSi]

Welcome to the forum

From the photos it looks like an FHF 66-4 and expect that Loyal Prince did some work to upgrade the movement.

[Neverenoughwatches]

33 minutes ago, DerekChasse said:

Hi all,

New to the hobby and I was wondering if I could get some assistance in identifying a movement.

https://imgur.com/a/Z2dbvPH

I see a logo that looks to be for F.H.F and a 66-4 engraving below that.  I also see H113 engraved across the train wheel bridge.

This is a 25 jewel, manual wind, movement on a Loyal Prince de luxe.  

I was a bit clumsy with the dial side incabloc spring and will need to get replacements likely and would love to figure out what movement this is.  I don't see much information about this online and it seems to be this here on ranfft https://ranfft.org/caliber/5648-FHF-66-4 but I'm almost certain that mine has more than 17 jewels.  Almost all are capped, and the barrel is jeweled as well.  Do the capped jewels "count as one"  and the 25 is just marketing?

With the incabloc sprint, I accidentally snapped one of the sides of the forked spring off.  Best practice would be to replace the spring I'm sure, but how interchangeable are they?  

Thanks for helping out a rookie.

 

The the Ebauches shield looks right, but without seeing the whole of the movement you have .  Movements over time, different grades will have varying numbers of jewels. 

[AndyGSi]

Here are the details for FHF movements.

[Nucejoe]

Check this, 

https://oldswisswatches.com/watch-parts-branded/fhf-calibre-movement-and-spare-parts/fhf-66-4/

There were couple of variants to base calib 66-4 ,  all share same shock spring.

Good luck

Edited November 3, 2024 by Nucejoe
correction

[AndyGSi]

Here's the full parts list with descriptions if you need anything else.

 

FHF 66-4 Parts List.pdf