Accurist movement help

[Danh]

Hi All

hope you all well

i am stuck trying to find out who made this movement, I need a new balance staff for It

it measures approx 18mm x 15mm (6.75x7.75?)

21 jewels

thank you

dan 

[oldhippy]

Have you looked under the balance for the I D, my sight is not that good but I think I can see something under the balance. Or take the movement out, remove hands, dial, if nothing there take a photo of the dial side and post, many I D's can be recognized by the setting leaver work.

[Danh]

Thank you for your answer

images as requested, there are no makers marks yet

 

[clockboy]

I think it is a FEF 6664. I say think because these style of movements look very similar to each other. To be certain you need to take measurements of the movement & also take what measurement if you can of the old balance staff. 

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?00&ranfft&a&2uswk&FEF_6664

 

to do your own research use this

 

http://www.ranfft.de/cgi-bin/bidfun-2uswk.cgi?1&ranfft

 

 

 

[Danh]

Thank you very much for your help

i promise I did a lot of looking before I posted, but then went "movement blind" in the hope that someone would say "accurist used to use XYZ company"

thank you again for your time

[oldhippy]

Thanks clockboy it sure looks like that's the one.

[clockboy]

OK getting the balance is the challenge. If the staff is the same as cal. 6600 or 430 then the staff can be purchased from the link below..

I might have one in my own stock.!!!!!

My "bestfit" book does not show the 6664. So I suggest use the measurements shown @ the balancestaffs site for the 430 to see if it is the one required. 

 

http://www.balancestaffs.com/fef.php

 

or

 

http://www.ebay.co.uk/itm/3-piece-vintage-FEF-6600-Swiss-made-Balance-Staff-For-Watchmaker-265-/262805841601?hash=item3d3072e6c1:g:~pgAAOSwaB5XjdWG

[Danh]

You awesome thanks you again, knowing its FEF is a tremendous help, i will dig around and get back if needed

thank you so much

[Marc]

I would certainly say that it was part of the same family of movements as the 6664 but there are a number of differences.

The 6664 has a push pin stem release and an adjustable stud carrier. The OP's watch has a screw stem release, a fixed stud carrier, and a completely different set lever bridge/spring. It also has a cut away around the outer edge of the train wheel bridge, although this may simply be cosmetic.

I'm not saying that it definitely isn't a 6664 as it is not uncommon for there to be slight variations within a particular calibre, however, this level of deviation is usually accompanied by a change in designation.

Of course it may make no difference at all in this case as it could well be that the same balance staff is used across the whole movement family, but then again if there are variations in (for instance) beat rate within the movement family, this may also mean variations in balance design and potentially different staffs.

It goes without saying that whatever it turns out to be it needs a non-shock protected staff and not the Incabloc illustrated on Ranfft.

[clockboy]

Good useful info Marc. The only way to be really sure is measure the old balance & see if  the same measurements apply to the 6600/430. 

[Danh]

Thank you Guys, my job for tonight 

most apreciated for all your input

dan

[oldhippy]

Depends on your experience if you haven't replaced a b/s before you might think of obtaining a balance complete. 

[Danh]

That's a good point, it all depends on tooling costs

i need to replace one at some point - so that point could be now

[BUSAKAZ]

On 19/01/2017 at 9:49 PM, Danh said:

Hi All

hope you all well

i am stuck trying to find out who made this movement, I need a new balance staff for It

it measures approx 18mm x 15mm (6.75x7.75?)

21 jewels

thank you

dan 

Hi Dan I've got one similar and it's marked eta 2487 if that's any use.

regards 

Kaz

[Danh]

Thanks Kaz

after looking at the tools I don't have to change the balance staff, I may replace the movement with a suitable ETA 

really helpful thanks

[oldhippy]

BUSAKAZ, I know your trying to help, but your movement is nothing like the Accurist, apart from size and shape. Just look at the difference in the plates and wind up mechanism, do you see how different they are.

[BUSAKAZ]

On 20/01/2017 at 10:43 PM, oldhippy said:

BUSAKAZ, I know your trying to help, but your movement is nothing like the Accurist, apart from size and shape. Just look at the difference in the plates and wind up mechanism, do you see how different they are.

 

Oldhippy I can obviously see it is different but if it got him out of trouble he could of had the movement for free.

[Danh]

51 minutes ago, BUSAKAZ said:

Oldhippy I can obviously see it is different but if it got him out of trouble he could of had the movement for free.

Too small I am afraid my friend, but I very much appreciate the thought - very very kind of you

[BUSAKAZ]

2 hours ago, Danh said:

Too small I am afraid my friend, but I very much appreciate the thought - very very kind of you

No problem happy to help.