I bought this watch as just a head in “working order.” Once again, a victim of believing everything you read in an eBay description, I found that while this watch was in absolutely pristine condition externally and on the dial, the electronics didn’t seem to want to work. The advantage to starting with a running movement is that you know that if you did everything right the piece will tick when you are done.
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The problem with this approach is that it is difficult to diagnose why something is not working if you have not taken the initial time to learn what makes it work, and how to properly take down, clean, and assemble a movement. In my conversations with many hobbyists who became quickly frustrated with the craft, the common thread was that they made the choice to buy broken movements and learn from there. Generally when I work on a movement for the first time, I try to get one that is in running condition. It was a relatively straightforward service, but a fully enjoyable one nonetheless. One interesting thing about these movements is that the gear train must fit into a seemingly small portion of the movement in order to accommodate the electronics and the coil. It also comes with a crude but efficient hacking mechanism. At 28,800 vph they run accurately and unbelievably smooth. They also have a much higher beat rate than their predecessor. Unlike the original Hamiltons, the electronic movements designed by this maker (ESA) that came out in the 70s were easy to service, robust, and way less temperamental. My fascination with short-lived technological transition pieces continues with this Girard Perregaux Electronic.
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