How does one regulate a 5100?
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Thread: How does one regulate a 5100?

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  1. #1
    Member rscmaine's Avatar
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    How does one regulate a 5100?

    There appears to be a tiny screw in between + and - ...do you try to turn that? Or do you simple SHOVE the whole mess left or right?

    Current - 1978 First Edition 17013 Rolex Oysterquartz, Tag Heuer WK1111 Chronograph, Apple "Dick Tracy" wrist radio

    Former watches - Sinn 142, Rolex 1503, Rolex 17013 Oysterquartz, 16803 Transitional TT Rolex Submariner, Omega GMT, Yellow Superocean, Navitimer A23322, Breitling Colt Chrono auto, Omega Flightmaster cal 910, Breitling Chronomat 13050.1, Omega Speedo reduced, Breitling Colt II SQ, 2 Omega Speedmasters Mark II (racing dial),T Serial 16613 TT Black Sub, Z Serial 16610 Rolex Sub, 18KT Rolex President 18078, 2 Rolex TT Datejust 1601, 4 Rolex TT Datejust 16013, 2 Rolex TT Submariner 16613, 3 Omega Seamaster Chronos 2599.80, 2 Rolex TT GMT Master II E 16713, Breitling Steelfish, Doxa 5000T Seaconquerer, 5 Omega SMP Bonds, Omega Speedmaster Mark 40, 2 Omega Speedmaster Triple Dates, Heuer Carrera cal 12, Breitling TT Chronomat, Breitling Jupiter Pilot, Breitling Superocean, Breitling Colt II Auto, Omega Planet Ocean 45mm, Two Sea Dwellers, and a bunch of crap

  2. #2
    Member Kurt Koerfgen's Avatar
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    Re: How does one regulate a 5100?

    Having tried this on a fairly inexpensive, old watch for the sake of seeing how it works, I would not repeat this exercise on any watch that I care for.

    The required adjustments are minute and the resulting differences in rate can considerable.

    To successfully complete this in a reasonable amount of time, a chronoscope would be needed. In the absence of proper training and tools, the odds that you would not succeed in getting the rate to within +10/-5 sec/day are overwhelming and you run the risk to damage the movement with unsuitable tools.



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  3. #3
    Member rscmaine's Avatar
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    Re: How does one regulate a 5100?

    As it turns out, my recently acquired 142 is running a quite respectable -2/day, so I needn't fiddle. (I asked before it arrived, expecting to find it 30 or more)
    Current - 1978 First Edition 17013 Rolex Oysterquartz, Tag Heuer WK1111 Chronograph, Apple "Dick Tracy" wrist radio

    Former watches - Sinn 142, Rolex 1503, Rolex 17013 Oysterquartz, 16803 Transitional TT Rolex Submariner, Omega GMT, Yellow Superocean, Navitimer A23322, Breitling Colt Chrono auto, Omega Flightmaster cal 910, Breitling Chronomat 13050.1, Omega Speedo reduced, Breitling Colt II SQ, 2 Omega Speedmasters Mark II (racing dial),T Serial 16613 TT Black Sub, Z Serial 16610 Rolex Sub, 18KT Rolex President 18078, 2 Rolex TT Datejust 1601, 4 Rolex TT Datejust 16013, 2 Rolex TT Submariner 16613, 3 Omega Seamaster Chronos 2599.80, 2 Rolex TT GMT Master II E 16713, Breitling Steelfish, Doxa 5000T Seaconquerer, 5 Omega SMP Bonds, Omega Speedmaster Mark 40, 2 Omega Speedmaster Triple Dates, Heuer Carrera cal 12, Breitling TT Chronomat, Breitling Jupiter Pilot, Breitling Superocean, Breitling Colt II Auto, Omega Planet Ocean 45mm, Two Sea Dwellers, and a bunch of crap

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