FHF identification help

[lxt123]

FHF movement from an Benrus watch.

It is 21.9mm diameter and I can't find a variation of 800 0808 in Mr  Ranfft database.

Here are the pictures.

Thank you.

[Neverenoughwatches]

8 minutes ago, lxt123 said:

FHF movement from an Benrus watch.

It is 21.9mm diameter and I can't find a variation of 800 0808 in Mr  Ranfft database.

Here are the pictures.

Thank you.

Could the number you are looking at possibly be a serial number 118080

[AndyHull]

This maybe?

https://17jewels.info/movements/f/fhf/fhf-1156/

 

 

Could also be a 150 variant, as there were several bridge styles with those.

 

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&FHF_150_0

 

[lxt123]

2 minutes ago, Neverenoughwatches said:

Could the number you are looking at possibly be a serial number 118080

I think that the serial number is 32746 on the barrel bridge.

[AndyHull]

It looks pretty old. Also I'm struggling to find anything by FHF that size, and with matching keyless works. It is a bit of an odd ball. 

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&FHF_Robert_8

Quote

Remarks
FHF ran several factories in Fontainemelon, and one was named after the founders Fabrique Robert. The calibres produced there are recorded in few registers (pretty poor and contradictionary) under names like Font Robert, FF Robert, FHF Robert. Bestfit mentions the Gruen 103 as an FHF Robert 8.75''' downsized to 8'''. But the example here (from a Wilka Watch) demonstrates, that this size was available right from factory. Obviously the 8.75''' calibres Gruen 100, 101, 620...623, 626, 627 are also based on this calibre, and are accordingly listed here, but realiable informations can't be given here.

Swiss Patent 51482:
filed 05-03-1910, FHF, Fabrique d'Horlogerie de Fontainemelon (CH)
setting mechanism without setting-lever spring

Example, year: signature; shock device
ca. 1925: - 9686, +51482

That is also similar, but the keyless doesn't look right.

Edited July 29, 2023 by AndyHull

[lxt123]

I'm trying to find a balance staff for it.

It looks identical with the FHF 1156 from Andy Hull, only that this is 15J. and 9-3/4 ligne.

I wonder if the staff will fit.

[mikepilk]

I've just finished trying to identify some scrap movements I bought. I think this is an FHF 1146.

The keyless looks the same. Though it measures 23.3 mm

[Neverenoughwatches]

35 minutes ago, lxt123 said:

I think that the serial number is 32746 on the barrel bridge.

118 calibre? 

 

18 minutes ago, mikepilk said:

I've just finished trying to identify some scrap movements I bought. I think this is an FHF 1146.

The keyless looks the same. Though it measures 23.3 mm

In the flume catalogue i have the 1146 came in sizes 8 3/4'"   9 3/4'"   and 12'"

44 minutes ago, lxt123 said:

I think that the serial number is 32746 on the barrel bridge.

1180 ? The 80 accidently  double stamped

51 minutes ago, lxt123 said:

I think that the serial number is 32746 on the barrel bridge.

 

38 minutes ago, lxt123 said:

I'm trying to find a balance staff for it.

It looks identical with the FHF 1156 from Andy Hull, only that this is 15J. and 9-3/4 ligne.

I wonder if the staff will fit.

Do you have the staff to measure up ? Balance staff . Com list an fhf caliber 119 at 9  3/4'"

[mikepilk]

10 minutes ago, Neverenoughwatches said:

In the flume catalogue i have the 1146 came in sizes 8 3/4'"   9 3/4'"   and 12'"

Well spotted. 21.9mm is 9 3/4''', so it looks like a 1146

[Neverenoughwatches]

2 minutes ago, mikepilk said:

Well spotted. 21.9mm is 9 3/4''', so it looks like a 1146

bestfit is the best from 1965 catalog, the flume is from 1952. 

[Geotex]

The Benrus movement designation would be "O."

[Giogrlj]

I need a balance spring and a pallet fork for this movement. Any idea where to find it?

On the dial side of the watch is stamped FHF8, but obviously this is a variant of FHF 1156 (different bridges). 

[clockboy]

3 hours ago, Giogrlj said:

I need a balance spring and a pallet fork for this movement. Any idea where to find it?

On the dial side of the watch is stamped FHF8, but obviously this is a variant of FHF 1156 (different bridges). 

Your only real chance is to find a donor movement on eBay. 

[Nucejoe]

5 hours ago, Giogrlj said:

I need a balance spring and a pallet fork for this movement. Any idea where to find it?

On the dial side of the watch is stamped FHF8, but obviously this is a variant of FHF 1156 (different bridges). 

Different bridges don't mean fork and balance springs are different too. 

 Fork and balance are parts of the escapement, designed to beat at certain rate which the entire escapement is suppose to produce, so you should base your search on beat/ frequency of the caliber you have .

As clockboy suggest your best chance is to find a donor, or a balance complete.

Balance spring off of two new balance completes of same caliber & frequency  won't readily interchange, though can be made to produce the design beat.

Prior to mass production of balance complete, watchmakers had to vibrate balance & spring to build a balance complete. 

There many discussions on the subject on WRT forum.

Rgds

Edited March 27 by Nucejoe

[mikepilk]

Is it 1146 or 1156 ?

If it's 1146, Cousins have a complete balance

[Giogrlj]

3 hours ago, Nucejoe said:

Different bridges don't mean fork and balance springs are different too. 

 Fork and balance are parts of the escapement, designed to beat at certain rate which the entire escapement is suppose to produce, so you should base your search on beat/ frequency of the caliber you have .

As clockboy suggest your best chance is to find a donor, or a balance complete.

Balance spring off of two new balance completes of same caliber & frequency  won't readily interchange, though can be made to produce the design beat.

Prior to mass production of balance complete, watchmakers had to vibrate balance & spring to build a balance complete. 

There many discussions on the subject on WRT forum.

Rgds

Thank's