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mzinski

What the fake?!

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mzinski

So another forum member asked me to look into his Seamaster Chrono as it was stopping intermittently and the chrono wasn’t working quite right. Cool, I can do that, I’ve worked on chrono’s. 

VVtujZ.jpg

What I didn’t realize was the movement had an absolute fake “bridge” sandwiched between the real movement and the oscillating weight. I also learned I have no idea how to remove this plate to access the movement. 

VVXXd8.jpg

I have identified the two real screws that hold the plate down but that’s it. I can remove those two screws, loosening the plate, but it’s still trapped between the real movement and the oscillating weight  

Has anyone ventured into disassembling a movement like this? Can anyone give me some insights on getting the oscillating weight and fake “bridge” off? 

Much appreciated! 

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narikaa

A fake watchsmith juggling fake screws

 

This forum has everything (best said in a Blues Bros Mall smash voice)

 

 

But in the spirit of things, maybe the oscillating weight (known as the "Rotor") needs removing ;)

 

 

 

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Mike R

Yes I would think you remove the rotor, center screws and then the decorative plate/foe bridge

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Automotiveromance

That little plate with the 3 holes in the center of the rotor is probably faux and covering the actual screw.

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mzinski

Yes, thanks guys - but easier said then done. The bearing on the rotor is not secured with a screw on the top side. 

Im suspecting I need another new tool to do this work - a rotor removal tool: https://www.watchrepairtalk.com/topic/9051-tool-for-removig-oscillating-weight-on-sellita-300/

similar to working on an ETA 2893 or Sellita 330, I would have preferred removing the automatic bridge and accessing any screws for the rotor from the underside. But with this decorative piece of metal in the way, I think the bearing needs to be removed. 

Theres always another special tool to buy...

2 minutes ago, Automotiveromance said:

That little plate with the 3 holes in the center of the rotor is probably faux and covering the actual screw.

Aha! I’ll give that a shot. 

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pickledbeetroot

Is it just stuck on with glue?

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RussP
12 minutes ago, pickledbeetroot said:

Is it just stuck on with glue?

Very real possibility with a rep.

Good call, Stu.

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deju

Remove the rotor, real screw under that fake plate. 

Remove the hands and dial. (Dial held on with some ds tape so wedge gently with an exacto knife) dial will pop off. 

youll then see 3 movement holder tabs holding the movement into the deco plate, remove them and it just falls out 

:)

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MetalMickey

Tap the Crystal with an ice pick to crack it open and just go in from the front


Sent from my iPad using Tapatalk

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FromRussiaWithLove

:daffy:

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mzinski
3 hours ago, deju said:

Remove the rotor, real screw under that fake plate. 

Remove the hands and dial. (Dial held on with some ds tape so wedge gently with an exacto knife) dial will pop off. 

youll then see 3 movement holder tabs holding the movement into the deco plate, remove them and it just falls out 

:)

Thanks! I’ll try this later this evening. 

I did notice the movement attached to a movement ring. 

3 hours ago, MetalMickey said:

Tap the Crystal with an ice pick to crack it open and just go in from the front


Sent from my iPad using Tapatalk

You know, I started there....

8 hours ago, narikaa said:

A fake watchsmith juggling fake screws

 

This forum has everything (best said in a Blues Bros Mall smash voice)

 

 

But in the spirit of things, maybe the oscillating weight (known as the "Rotor") needs removing ;)

 

 

 

I prefer the term hobbyist (said in a snooty British accent)

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mzinski

Turns out the three-holed bearing plate on the rotor IS the screw. 

Now we know. 

With that solved back to work. 

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FoxWilde

That movement looks a mess to be honest. So much decorative plating. 

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Jibuti

Well. My w/s in cases like that uses hammer.. A big one.. Sorry, cannot help more. 

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