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1975 Seiko Automatic with emerald green dial was practically soaked in oil


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I bought a 1975 Seiko automatic with a really nice emerald green and gold dial, and the entire watch was so sticky with old oil that I almost wonder if whoever serviced it last just dunked it in oil to try to get it working. I thought at first that the hairspring was kinked, but removing the balance and a close inspection under the microscope revealed that it was just caked with old sticky oil, and most of the coils were sticking to each other.

I tried cleaning it in lighter fluid three times before I ultimately gave up and ordered some L&R 556 fluid and an ultrasonic cleaner. With the movement given an actual proper cleaning, the balance swung free and clear and I had high hopes that I would get a usable watch in the end. On the plus side, I have an ultrasonic cleaner now, and it made cleaning up the watch case much easier.

The crystal was completely destroyed so I had to source a new one along with a new band, but the dial only had a few spots where oil seemed to have seeped through from behind. I didn't want to touch it much, but was able to gently dab up most of it with some rodico. Unfortunately there was one spot where a small drop of oil had gotten under the clear coat and destroyed the paint underneath. As soon as I touched that part it all came away leaving a spot of bare metal. The rest of the watch looks good enough though that I can ignore this small blemish, and with everything cleaned up and a bit of regulating it's running really nicely.

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Here are a couple of shots I took for reference before the cleaning (didn't take any of the sticky balance, sorry)

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