Well from most accurate to least accurate:
2 LE 9F GSs: I haven't seen them off by as much as a second in several months of ownership. Rated at +/-5 sec/year
Non LE 9F GS: Easily within 1 sec/month, although I never see a need to time it.
I use the above to set my Swiss watches.
2018 DJ, is - 3 sec/day
2018 Bluesy is pretty much spot on. Never put it on a Time-o-graph but it appears to keep up with my 9F movements
2019 TT Daytona; don't have a clue as it is brand new.
Given its experience the DJ is the only one I will time check when I put it on.
|