See my last post above - I had waited to post this until I had a conclusion, but only managed to post it at WUS and not here.
I had a little issue with my Poseidon timekeeping being very erratic and unpredictable, often being a bit too fast on the winder and too slow on the wrist, and difficult to measure the rate on a timegrapher. The movement's beat wasn't very clean looking when examined on my watchmaker's timegrapher, and it wasn't magnetized (still tried to degauss it).
So I sent it to DOXA in the USA about 3-4 weeks before all of the Swiss went on vacation for a month, expecting it back in about 12 weeks. I wasn't in a rush since I have so many watches, and Andy was very helpful in getting it shipped to Switzerland at no charge. He thought that they might just put in a new movement, as the easiest solution. The watch came back last week, about 2 weeks ahead of schedule, but with no note about what was done. I haven't bugged Andy about what they did until I had time to be sure it was running properly or not.
It included a timegrapher printout showing it to be about +4.8 sec in 3 of the 6 positions with a delta of 4.8 (plus 3.0 - 7.8 sec/day), and good amplitude around 290. Since arrival it's only lost 7 seconds in 6 days on my Eilux dual winder (it could be losing in the other 3 positions, and it doesn't really replicate the different positions it would see on the wrist).
Once I'm done testing my POLMLE on the wrist, which just came back from the Spa today, I'll then see how the DOXA timekeeping on the wrist compares to the timegrapher slip they sent me (and vs how it's been running on the winder). I'll also try to get it on the timegrapher and see how clean the beat looks. Overall, the rate is much better now than when I sent it in.
PS: In the 1st 7 days back, my freshly repaired DOXA Poseidon has only lost a total of 0.3 seconds! Not bad. It has been running between +0.7 sec/day and -0.2 sec/day on the winder, at an average rate of almost -0.05 sec/day. Although that's -7.3 seconds in 13 days, when you count the first 6 days back.
In that same week my Hulk would have lost 1 second and my POLMLE would lose 9 seconds, my Tudor Black Bay Red would gain 2 seconds and my GSOTM would gain 10 seconds, my SMPc chronograph would gain 14 seconds and my Ti Planet Ocean 9300 would gain 28 seconds (still only 4 sec/day).
Obligatory Pic attached:
