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Servicing A Eiger Watch With Subsecond

rogart63
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rogart63 Distinguished Member

rogart63

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Need to find out which movement this is . Can't see what number and doesn't recognize the logo  . 

I did a drawing of the logo and took a picture of the movement . Help me  :) post-644-0-89922000-1428606547_thumb.jpgpost-644-0-81911200-1428606532_thumb.jpg

rogart63 Distinguished Member

rogart63

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Perfect . The movement is nice and clean . Have cleaned everything .But doesn't pick up any speed . 170 amplitud isn't so good . I think it has been dropped because the dial pins are broken .

anilv Distinguished Member

anilv

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Posted

Did you replace the mainspring?

 

Or at the very least take it out of the barrel and assess its shape?

 

Anil

rogart63 Distinguished Member

rogart63

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I demagnitize it and cleaned the pallet fork .And now the amp is over 200 . That will have to do for me . I cleaned the mainspring also . Nice little movement btw . Easy to work on . Little dot in the crystal at 6 -7 but the owner wanted to keep the crystal as is . 

 

post-644-0-29662400-1428692671_thumb.jpg

Edited by rogart63
  • 4 years later...
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      By Simeon · Posted

      Righty ho, I re-serviced the chrono module and got a reasonable result with minimal loss of amplitude when not running the chrono and about 30 degrees loss when running. Great. The problem is now that the chrono (and movement) stops running after about a minute or so, a tap on the watch starts it running again. No issues with the movement running when the chrono is stopped. Going to service it yet again, obviously some residual issues with friction in the chrono module (Very frustrating - I wish there was some way of testing it as I go!) I also seem to have a problem with the cannon pinion where the movement is running continuously (with the chrono stopped) but it's losing significant time / stopping. This is one of those two piece ETA style with a driving wheel pressed over the cannon pinion, obviously arranged for driving the chrono module. I had no issues with this prior to service and just added a small amount of grease between the driving wheel and the centre cannon pinion as the technical guide required. What's the best way of tightening these up? I would like to replace it but I guess this is going to be hard to find as it is dedicated to the DD chrono movement. 
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