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    Re: Quartz Watch Movement Replacement follow-up
    From: Greg Rudzinski
    Date: 2012 Sep 1, 13:20 -0700

    Success with the ETA quartz movement replacement gave me confidence to replace a Swiss Ronda movement in an ESQ sport divers watch. The Ronda movement was ordered and shipped from Switzerland for about $10 US. A real bargain I think. Everything went together as expected. Now to rate both the ETA and Ronda quartz movements together. Using a digital stop watch and a short wave radio ratings went as follows:

    After 5 days

    ETA -0.18 seconds per day average
    Ronda + 0.24 seconds per day average

    After 30 days

    ETA - 0.20 seconds per day average
    Ronda + 0.23 seconds per day average

    There is good luck here in that the sum of the two watch rates averages to only + 0.03 seconds per day for an annual rate of + 11 seconds.

    Greg Rudzinski

    [NavList] Quartz Watch Movement Replacement
    From: Greg Rudzinski
    Date: 16 Jun 2012 13:57
    Last month I picked up a Wenger S.A.K. quartz watch on ebay. The movement worked but seemed a little sloppy as the second hand marched around the dial. A google search lined me up with a $5 movement replacement. An ETA 805.121 using no jewels. This is a very simple day and date movement that is hard to mess up with on a first time watch repair effort. All was going well until I couldn't figure out how to get the watch face off the movement. A fellow (Ricky) from the Poor Mans Watch Forum helped me out with a detailed description and pictures on how to take the face off. Everything went back together with only one hitch. The hour and minute hands made slight contact on the go around. A press and pull set everything right. A new battery is installed and now it will be awhile to check on the rate. I'm hoping for ± 1 second per week or better.

    Greg Rudzinski
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