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2824 problem (video)

AP1875

By AP1875
in Watch Repairs Help & Advice

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AP1875 WRT Addict

AP1875

Posted
Posted

I serviced this ETA 2824, everything looked great on the timegrapher -

315 amp dial up 0 beat error

310 amp dial down 0 beat error

295 amp crown down 0.1 beat error

I left it running for around five hours, came back to it and it had stopped dead. Gave it a little shake and no sign of life, so did the following checks

  1.  Double checked the hand clearance to each other and the glass all looked fine.
  2. Checked the mainspring still had tension by letting the power down a little and it did. 
  3. Gave the balance a little nudge, moves feely
  4. Removed the balance, checked the pallet fork moves side to side, it doesn't.
  5. Removed pallet fork to check escape wheel and train, some movement and other times jammed up.
  6. Tried winding the crown with ratchet wheel still installed, no movement of gear triain.

I took 2 videos, one with the barrel in and one out. I'm really confused how it can be running absolutely perfectly and then just crap out??

What do you guys think? Issue in the gear train? Wheel needs replacing? Operator error :wacko:?

 

https://www.youtube.com/watch?v=-JdLAHEtZ5c

 

Barrel removed

https://www.youtube.com/watch?v=_CqARrH0Pv0

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Nucejoe Distinguished Member

Nucejoe

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As you turned the gears, ratchet wheel etc,  you stayed within an interval turning  clock&anticlock, what if a faulty tooth is located outside that interval, will you turn a full turn of the barrel.

 

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HSL Distinguished Member

HSL

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Posted (edited)

Except from a broken tooth you might check where the impulse jewel is in a rested position, sometimes the jewel might get loose, I even encounterd the hole roller getting loose. 
By what I see in the video the drive train looks good.

Edited by HSL
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AP1875 WRT Addict

AP1875

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Thanks for the replies guys.

24 minutes ago, Nucejoe said:

As you turned the gears, ratchet wheel etc,  you stayed within an interval turning  clock&anticlock, what if a faulty tooth is located outside that interval, will you turn a full turn of the barrel.

 

I made another video turning the barrel a full turn, seems to get stuck at one point.

so either the fourth wheel or barrel damaged?

 

 

On another note I just got an email from youtube saying my first video has been reported and they've chosen to remove it, that's disappointing. No idea what rule I broke.

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AP1875 WRT Addict

AP1875

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1 minute ago, Nucejoe said:

The hell with you tube, We get the watch fixed without em, wont we. lol

wow forget youtube you have amazing eyes. 3 teeth broken! How the hell does that happen. Barrel was cleaned by hand, I wonder if the fourth wheel will have damage as well.

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eccentric59 WRT Addict

eccentric59

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14 minutes ago, AP1875 said:

On another note I just got an email from youtube saying my first video has been reported and they've chosen to remove it, that's disappointing. No idea what rule I broke.

Probably all those naked watch parts. ;) (I saw the video and I cannot begin to imagine what was reported.)

 

 

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AP1875 WRT Addict

AP1875

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3 minutes ago, eccentric59 said:

Probably all those naked watch parts. ;) (I saw the video and I cannot begin to imagine what was reported.)

 

 

I hope it was a glitch in the system and not actually reported

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Nucejoe Distinguished Member

Nucejoe

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13 minutes ago, AP1875 said:

wow forget youtube you have amazing eyes. 3 teeth broken! How the hell does that happen. Barrel was cleaned by hand, I wonder if the fourth wheel will have damage as well.

I would check all, a piece of loose metal inside may destroy your watch.

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HectorLooi Distinguished Member

HectorLooi

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Posted

Hey! Your 3rd video has been removed too! :thumbsd:

What was the original condition of this movement? I had a Seiko recently that had a similar problem. The guys here at WRT think it might have been a Mumbai special. It had a whole bunch of teeth missing but the 2nd wheel was in perfect condition.

Most probably caused by improper technique when opening the mainspring barrel.

20200411_213017.jpg

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