Cyma 671 balance staff

Discussion in 'Watch Repair' started by Dave A, Aug 16, 2012.

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  1. Dave A

    Dave A Registered User
    NAWCC Member

    Feb 18, 2011
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    Roslindale, MA
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    Hi,

    I'm working on a Cyma ref. 671 with a bad staff, and I'm having trouble sourcing a replacement or finding any interchange data - actually, I'm not seeing any mention of the 671 either as a Cyma or a Tavannes. I have a one-volume Bestfit book that would let me look up a Bestfit number from measurements, but before I did that I thought I'd ask here to see if anyone knew this movement or could suggest other places to look.

    thanks!
    -Dave
     
  2. DaveyG

    DaveyG Registered User

    Mar 21, 2005
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    Male
    Retired military aircraft engineer
    North Wales, UK
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    Don't know the movement Dave and from the UK our standard staff reference is the 'Ronda' Book. The Ronda number 2306 is listed for the 671 staff and for Cyma refs 510, 511,515,610,611,613,1713,530,531,630,631,633,540,541,640,641,1815,570,571,572,573,670,671.

    Sort of broadens the search area.

    Overall length is 408
    Bottom piv to balance seat is 206
    Balance seat dia is 120
    Roller seat dia is 60
    H'spring seat dia is 85

    Available from the UK here: http://www.cousinsuk.com/searchresults.aspx?searchtext=ronda+2306

    hope this helps and good luck
     
  3. Dave A

    Dave A Registered User
    NAWCC Member

    Feb 18, 2011
    6
    0
    1
    Roslindale, MA
    Region Flag:
    Thanks, that's incredibly helpful! With that broadened search area, I was able to order a staff from Borel and I have high hopes it'll fit.
     

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