This Rolex Oyster Date came to me recently with a broken mainspring. The owner commented that it had been necessary for him to wind it manually for the past year, and then it quit! I didn’t open it while he was here, so I told him I expected to see the rotor post worn out, or one or both reverser gears at fault.
When I opened it, there was no trace of rotor rub, and both reverser gears were fine. I emailed him and suggested that having to wind an automatic that was in otherwise good order is often the result of reduced activity and/or illness of the owner. He answered with a reply that he had been undergoing cancer treatments for the last year, and that his activity level HAD been greatly reduced. He approved my estimate for conditioning, mainspring, and water test. The watch is about 30 years old, and I have maintained it for him since 2004. Calibre 3135. I believe this is a Buckley dial? Anyone know where that name came from? He will retrieve it later this week.