Trench Watch Movements Identification

[rodabod]

Hi, in case anyone recognises these, especially the one with the swan neck regulator, could you please let me know? Thanks in advance. 
 

 

[MrRoundel]

The top one with the micrometric regulator reminds me of a Zenith. Not sure though. The others are such common looking ebauches I can't hazard a guess. Good luck.

[AndyHull]

If there are no distinguishing marks on the balance side, then you will need to look under the dials. Even if this doesn't reveal the maker's stamp, there is a chance that they can be identified from the keyless work.

[WatchMaker]

Worth starting with a look at Fabrique d'Horlogerie Fontainemelon (FHF) movements.

David Boettcher has some great information on his site under https://www.vintagewatchstraps.com/movements.php

For instance your second pic looks like a Fontainemelon 2; and your first pic, at least in terms of distinctive bridge shapes, like what David calls a Fontainemelon 6. Do the movement sizes tie up i.e. 13''' = 29.3mm?

 

Edited May 5, 2020 by WatchMaker

[rodabod]

I will have a look at David Boettcher’s website. His site is absolutely fantastic and he is a great engineer/horologist. 

[MAD19]

  On 5/4/2020 at 4:10 PM, rodabod said:

Hi, in case anyone recognises these, especially the one with the swan neck regulator, could you please let me know? Thanks in advance. 
 

 

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Mine is a lot like the first one. Also unknown.

[MAD19]

  On 3/27/2025 at 1:13 PM, MAD19 said:

All points to: Fontainemelon (FHF) Cal. 6

Mine is a lot like the first one. Also unknown.

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