Hudson Dynamic jump hour

[ro63rto]

 

Got this on the way but as its ticking but not advancing the time, I want to see if i can get a parts movement for spares.

 

 

I know it's a crappy movement but I like the case & "dial"

 

Can anyone id the movement?

Its stamped Bader Ltd but Ranfft doesn't list it so I presume it's a rebranded movement.

 

 

 

[noirrac1j]

11 minutes ago, ro63rto said:

 

Got this on the way but as its ticking but not advancing the time, I want to see if i can get a parts movement for spares.

 

 

I know it's a crappy movement but I like the case & "dial"

 

Can anyone id the movement?

Its stamped Bader Ltd but Ranfft doesn't list it so I presume it's a rebranded movement.

 

 

 

 

Its a Baumgartner 866. The reason it is not advancing is because of the drive gear is riveted onto the barrel of the mainspring, and it needs to be tightened in order to drive the hour and minute hands. This is a characteristic problem that is unique to this type of movement in that it does allow the seconds to continue ticking because that gear is directly driven. I'll follow up later with more info.

J

[ro63rto]

Thank you [emoji106]
Any other info you can list is greatly appreciated.

[watchweasol]

Hi I have enclosed the tech sheet for the BFG866 movement (Baumgartner) should be useful when dismantling the movment I have done a few 866's solid watches 

2529_BFG 866,866.31.7 (1).pdf

[Watchtime]

Got a relative here....It runs solid on a PUW(Pforzheimer Uhren-Rohwerke) 1560D

 

[ro63rto]

Its a Baumgartner 866. The reason it is not advancing is because of the drive gear is riveted onto the barrel of the mainspring, and it needs to be tightened in order to drive the hour and minute hands. This is a characteristic problem that is unique to this type of movement in that it does allow the seconds to continue ticking because that gear is directly driven. I'll follow up later with more info.
J

I'm ordering a new barrel lid from CousinsUK. That should solve the issue, right?

[rogart63]

Maybe same problem as i have with a BFG 866 digital . It the hour jumper that is broken. doesn't run either.  it's the part in the middle. Should be twice as long. It's sits inside the minute disc and flips the hour disc when it comes to 59 minutes. was thinking of making the part. But don't know how it should look. So i bought a donor movement. fingers crossed it's okay. Haven't seen any spare parts for the digital jump hour movement except the usual like balance and wheels. 

[noirrac1j]

48 minutes ago, ro63rto said:

4 hours ago, noirrac1j said:

Its a Baumgartner 866. The reason it is not advancing is because of the drive gear is riveted onto the barrel of the mainspring, and it needs to be tightened in order to drive the hour and minute hands. This is a characteristic problem that is unique to this type of movement in that it does allow the seconds to continue ticking because that gear is directly driven. I'll follow up later with more info.
J

I'm ordering a new barrel lid from CousinsUK. That should solve the issue, right?

The drive gear is riveted to the lid of the barrel, so yeah that should do it. You could also take a broach or a staking set placed within the gear opening and give it one tap. It usually tightens up enough to drive the hour/minute hand, but loose enough to allow setting the time.

J

[ro63rto]

The drive gear is riveted to the lid of the barrel, so yeah that should do it. You could also take a broach or a staking set placed within the gear opening and give it one tap. It usually tightens up enough to drive the hour/minute hand, but loose enough to allow setting the time.
J

Thanks but I'm nowhere near handy enough to warrant splashing out on a staking set. The lid is only £6 so I'll just order that once the watch gets here and I've had a chance to take a close look.

[ro63rto]

Quick question
Is it the lid I actually need or the barrel itself?
I want to add it to other bits I'm ordering to take advantage of the postage. If I get it wrong and have to reorder it will end up costing me loads more, comparatively.

[ro63rto]

Panic over, looks like I got it right

[rogart63]

On 6/3/2019 at 10:56 PM, noirrac1j said:

The drive gear is riveted to the lid of the barrel, so yeah that should do it. You could also take a broach or a staking set placed within the gear opening and give it one tap. It usually tightens up enough to drive the hour/minute hand, but loose enough to allow setting the time.

J

Is it only the digital 866 that has this gear on the barrel or does all 866 have them? 

[ro63rto]

Is it only the digital 866 that has this gear on the barrel or does all 866 have them? 

From what I've been reading, it looks to be all have this.

 

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Baumgartner_866

[ro63rto]

https://17jewels.info/movements/b/baumgartner/baumgartner-866-cld-dig/

[noirrac1j]

5 hours ago, rogart63 said:

Is it only the digital 866 that has this gear on the barrel or does all 866 have them? 

Mostly seen in jump hour, but I've seen this same barrel in at least one non-jump hour with BFG 866.

J

[ro63rto]

Went to take the dial off to see why the date won't click over but can't find my smallest thinnest screwdriver [emoji35]

[noirrac1j]

5 hours ago, ro63rto said:

Went to take the dial off to see why the date won't click over but can't find my smallest thinnest screwdriver

 

They're small alright. I have extras if you lose one!

J

[ro63rto]

They're small alright. I have extras if you lose one!
J

Thanks. Hope I don't. Will work on top of a cloth so no bouncing pieces on table surface so hopefully that will stop any losses.

[ro63rto]

 

 

 

 

Panic over, looks like I got it right  

 

 

Hmm, my order from Cousins just got here and there's something not right, apart from it is part plastic.

The small cog looks to be a lot lower profile than the original brass version. You can barely see it in the photo. Hope it will work.

 

 

 

[ro63rto]

Balls!!
While attempting to remove the barrel lid, the mainspring shot out and smacked me on the visor [emoji35]

I give up with this. Gonna look for someone to rebuild it for me.

[noirrac1j]

3 hours ago, ro63rto said:

Balls!!
While attempting to remove the barrel lid, the mainspring shot out and smacked me on the visor

I give up with this. Gonna look for someone to rebuild it for me.

I ordered two  Cousins mainsprings for a Landeron and both broke after a few hours. When I tried getting a refund, they refused because the mainsprings were from  some other supplier and they could not return them....and so I would have to take the loss, not them. That was the last order I made to Cousins. 

Ok for next time, place  one side of a thin brass tweezers between the barrel edge and the lid to keep that spring down, then open it. I have more barrels and lids if you need one...and I might have springs too. Have to check.

J

[ro63rto]

I ordered two  Cousins mainsprings for a Landeron and both broke after a few hours. When I tried getting a refund, they refused because the mainsprings were from  some other supplier and they could not return them....and so I would have to take the loss, not them. That was the last order I made to Cousins. 
Ok for next time, place  one side of a thin brass tweezers between the barrel edge and the lid to keep that spring down, then open it. I have more barrels and lids if you need one...and I might have springs too. Have to check.
J

Don't think the MS is damaged, just my visor [emoji4]
Don't think I lost anything. I'll try and find someone willing to work on a pin lever. Really want this on my wrist.

[noirrac1j]

1 hour ago, ro63rto said:

Don't think the MS is damaged, just my visor
Don't think I lost anything. I'll try and find someone willing to work on a pin lever. Really want this on my wrist.

Most watchmakers will not work on a pin lever because although they are simple in construction, they can be challenging to assemble because of the inexpensive method of construction. Before I learned how to do complete overhauls myself, I asked (via email) a well known watchmaker on the east coast if he would overhaul my 17 jewel Sicura jump hour. "That's not the kind of watch I'd want to work on..." was the reply.

Watch-bias and snobbery can be pervasive in some circles.

J

Edited June 13, 2019 by noirrac1j