A slight development on my slow-running DJ 36, which after around 2.5 years was running about 7 seconds a day slow. I haven't put it on a timegrapher yet but hope to do so soon.
I went to Goldsmiths in Reading and spoke to the SA there. He suggested giving it a manual wind, which I've been repeating each morning, giving a few turns each time). Since then it's been running 3 seconds a day slow, so much better. Still out of Rolex specification, but not enough to bother me too much.
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