Fel
·Hi everyone, long time lurker first time post. I recently got my 3570.50 serviced and it was running perfectly for the first three months but then started having issues. I had it put on a timing machine this weekend and it looks like it is +5 no matter what but when the chrono is off the amplitude drops considerably and the timekeeping is poor. Does anyone know what the issue could be? My watchmaker is great and has serviced multiple watches for me but for some reason my Speedy has had a few issues since the service. I plan on taking the watch back to him since his work is under warranty but just wanted to see if anyone knew what could cause something like a steep amplitude drop with the chrono on.