What is BPH for this Urgos

Discussion in 'Clock Repair' started by ticktock, Dec 31, 2011.

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  1. ticktock

    ticktock Registered User

    Aug 24, 2004
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    Healthy New Year to All!

    Have an Urgos 5X5 square grandmother movement chain driven T,S,C and don't know what the BPH is. The markings on the bottom rear are minimal. It is stamped PL85CM
    with the number 1130. That is all.
    Anyone know what the BPH is?

    thanks

    tick
     
  2. shutterbug

    shutterbug Moderator
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    Oct 19, 2005
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    What do you get when you run it? I'm mostly guessing, but I think you should be expecting 4320 BPH. I surmise that from your pendulum length, and comparing the 5X5 movements listed in "The Clockmakers Beat Book" using the closest one.
     
  3. ticktock

    ticktock Registered User

    Aug 24, 2004
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    HNY Shutterbug. Been running it for 24 hours and was about 12 minutes slow so started to make adjustments. Don't think the pendulum is original. Don't want to do the trial and error thing for a week so thanks for the number and will take a reading tomorrow morning.

    tick
     

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