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Smiths ABEC platform escapement parts compatability

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On the weekend I went for a day trip to York which is a small country town about 80km away from where I live and after a nice lunch visited a few antique stores.

I stumbled across a Jaeger car clock movement that I just couldn't say no to.

On getting it home and opening it up I discovered it looks like someone at some point sprayed the platform with WD40 or CRC or something like that which of course dried up, attracted dust and then rust.

I have stripped the platform completely apart and given it, its first clean and I'm pretty confident I can clean up pretty much everything except the hairspring which has rust spots on it, so will need a new hairspring.

Just wondering how compatible the parts are between different ABEC or Smiths platform escapements as I'm hoping I can find one on ebay with a broken staff but with a good hairspring for a reasonable price.

Here is a photo of the platform in all its dirt, rust and gummy oil glory before I stripped it down and cleaned it.

The clock amazingly actually still ticked with the platform like this.


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I don't know about compatibility but you should be able to pick up a complete working platform for a nice price.  As far as I remember the b/staffs on these are just a tap out and a tap in fit. 

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16 minutes ago, oldhippy said:

I don't know about compatibility but you should be able to pick up a complete working platform for a nice price.  As far as I remember the b/staffs on these are just a tap out and a tap in fit. 

   a slip fit.    there have been a few posts on smith auto clocks  and  balance.   vin

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Looks like time for me to keep an eye out on ebay then.

I'm still going to try and fix this though, if nothing for more than practice

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Hi  I Had a small mantle clock in for repair with an ABEC  platform with a broken staff so I canibalised one that had a broken escape wheel and build one from the bits They all seem interchangeable, This one went home to a delighted owner and its still ticking away.  a bit of a hybrid but working.

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