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Movement Identification - Bovet

mcoulton

By mcoulton
in Watch Repairs Help & Advice

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mcoulton WRT Addict

mcoulton

Posted
Posted

Hello

Does someone know what type of movement this is? It can out of a Bovet military watch but I don't think its a Valjoux or a Landeron. I haven't taken the dial off and looked on the other side of the movement.

Thanks in advance for any help that can be provided.

Michael

 

P1100298.JPG

rogart63 Distinguished Member

rogart63

Posted
Posted
18 minutes ago, oldhippy said:

Its not shockproof. Its just a standard movement. A simple one to practice on. 

But i see a Incabloc spring. So must be shockproof . Never seen a FHF 70 with center second attachment? 

oldhippy Distinguished Member

oldhippy

Posted
Posted
18 minutes ago, rogart63 said:

But i see a Incabloc spring. So must be shockproof . Never seen a FHF 70 with center second attachment? 

 Where?

 

19 minutes ago, rogart63 said:

But i see a Incabloc spring. So must be shockproof . Never seen a FHF 70 with center second attachment? 

 

oldhippy Distinguished Member

oldhippy

Posted
Posted
2 minutes ago, wls1971 said:

It does have shock protection:

P1100298.JPG.2adcf9771bd6ad7a60a338408e5a625b.thumb.jpg.f3875eb1aef6ba412b6078a96bca07ab.jpg

Sorry yes you are correct. I was looking at the one in the link I posted. Looks like I'm going to have one of those days. 

  • Haha 2
Nucejoe Distinguished Member

Nucejoe

Posted
Posted
1 hour ago, rogart63 said:

But i see a Incabloc spring. So must be shockproof . Never seen a FHF 70 with center second attachment? 

Many variants to fhf70 with different bridge layout were made, namely inderctly driven min hand, then this with center second cock and your regular sweep second with min wheel incorporated inside ebauche. 

Its ancestor fhf30 and on, were mostly sub second versions.

Almost every manufacturer put some versions in their watches,  some were in-house and high grades , Rolex did too. 

 

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mcoulton WRT Addict

mcoulton

Posted
  • Author
Posted

Thanks to everyone for their responses. You've been a big help. Here are two more pictures of the time piece I'll be servicing. The crystal more than likely will need replacing as will the stem. I can't put any power into the movement as the click won't sweep fully to allow the crown wheel to turn.

Questions:  1.) Does my watch come with a seconds hand? I'm not sure if it does or if it uses a sub seconds which the dial doesn't accommodate.

2.) Are all seconds hands sized the same? I don't mean the length, I mean the pinion that they are secured to on the fourth wheel (?), is it the same for all seconds hands? Hope that makes sense.

3.) I'm thinking of buying an assortment of ETA watch stems, will I find a stem that fits this movement or do I need to search for a fhf70 movement specific stem. 

4.) What is the best parts source for this movement; Cousins, Gleaves London? 

Thanks in advance for any help that can be provided.

Michael

P1100301.JPG

P1100302.JPG

Marc Distinguished Member

Marc

Posted
Posted
11 minutes ago, mcoulton said:

1.) Does my watch come with a seconds hand? I'm not sure if it does or if it uses a sub seconds which the dial doesn't accommodate.

There appears to be a seconds hand pinion in the middle of the minute hand hub, and the movement shows a cock and tension spring for a center seconds pinion.

 

11 minutes ago, mcoulton said:

2.) Are all seconds hands sized the same?

No. You can measure the end of the pinion with a micrometer to determine the correct size.

17 minutes ago, mcoulton said:

3.) I'm thinking of buying an assortment of ETA watch stems, will I find a stem that fits this movement or do I need to search for a fhf70 movement specific stem. 

No. You will need the correct stem for this movement, which may be common to other FHF calibers in the same family, but very unlikely to be common with any ETA stems. If there is enough thread left on the broken stem you could use a stem extender.

19 minutes ago, mcoulton said:

4.) What is the best parts source for this movement; Cousins, Gleaves London?

Cousins certainly seem to have a comprehensive stock of FHF70 parts.

You may need to get a more positive ID for the movement. Ranfft lists the FHF 70 as a sub-seconds movement but yours has a sweep seconds hand. It is definitely part of the same family as the 70, but some parts will differ from the sub-seconds 70.

rogart63 Distinguished Member

rogart63

Posted
Posted

There is one large problem. The third wheel is missing the pinion and the extra wheel that should drive the second pinion . Not easy to find. I can have a look in my box of old movements . Maybe cousinsuk have it? 

mcoulton WRT Addict

mcoulton

Posted
  • Author
Posted

Thanks very much for the responses. I believe the next step will be for me to dismantle the movement and have a look. I have a list of items I want to order from Cousin's and if I can figure out what I need from this watch then I'll include them in this order. 

Thanks

mcoulton WRT Addict

mcoulton

Posted
  • Author
Posted

Hello

I've stripped down this movement and have noted the markings. Can someone please clarify the type of movement based on the photo I provide? Is it a FHF I75 (as is i75) or a l75 (as in L75). I'm also having a little difficulty in figuring out the size for the second hand. I measure the pinion (?) at .30mm (second picture). Does that sound correct? 

 

Thanks

P1100326.JPG

InkedP1100358_LI.jpg

rogart63 Distinguished Member

rogart63

Posted
Posted
21 hours ago, Poljot said:

FHF 175

Hands
1.40 x 0.70 / 0.21mm

 

That isn't 100% sure as it's a center second version of this movement. FHF 175 has normally subsecond 

This is how the movement should look. Selza-Ltd-FHF-175-17-jewels-sweep-second.jpg.cae4dfb8add6a366d2d02f9a88276ba8.jpg

  • 3 years later...
Nucejoe Distinguished Member

Nucejoe

Posted
Posted

Just stumbled upon this old thread , must have left the discussion and didn't bother to revisit.

FHF 175 came in two versions, subsecond and sweep second . In subsecond version the minute hand is incorporated with gears of the train under gears bridge, has a long arbour that protrudes through the dial plate for the subsecond hand to mount on. 

The sweep second , however, has short arbour on 3rd wheel and sweeps through centre of dial plate. 

Google fhf175 to see image of both versions.

Rgds

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