So got my Defy back from Service a month ago and have been wearing it and leaving it on a winder when I’m not wearing it. I track the timing of my watches with an app and notice that it has been running slower and slower in the month + I’ve had it back. So I decided to check it on my timegrapher and attached are pictures of the results. But wow, 23 second spread if you take the fastest and slowest positions and even if you throw out the the most extreme and take the best 5 positions it’s still 15 seconds spread. This watch originally went back because the reverser was going bad and the power reserve meter wouldn’t go to full. Watch is around a year to year and a half old... LVMH had the watch 3 months.
I’ve had mixed results with LVMH service so I’ve always wondered if the same guy that works on TAG works on Zenith. I had a partial service done on one of my Stratos, full service done on another Stratos, and full service done on a Chronomaster Bullet. Those all came back running well. I also had a TAG Calibre 36 Ti that had an overhaul done... that uses an El Primero Flyback movement and came back ok.. averaged around -4 spd but extreme positional variance was around 6 seconds. I also had a pair of Tag Heuer 01’s go back for warranty work but both watches had around 15 seconds of extreme positional variance and IIRC one was +7 spd average and other -5 spd average. Now TAG doesn’t make any claims to their watches accuracy on their Heuer 01 movements so to me that was fine. But for a Defy to come back running like this I wonder if someone on their B team got a hold of it? When watches go back to LVMH is it just the luck of the draw on who’s paying attention to regulating your watch?