LOL, no.It is my most accurate mechanical at the moment, surpassing Ball and Rolex.
Is this to be expected from this diver - gentlemen?
I agree some stock SKX are a lot more accurate than others. Seiko QC bandwith is +/- 15 or 20 seconds a day, max. Which is about the same as your average ETA movement. However, with a little bit of work, so far every one of my 7S movements have been regulated to +/- 1 or 2 seconds a day. Which is up to par with any Rolex, Patek Philip Philippe or any other fancy Swiss brand. The only difference is, those expensive brands take the time (no pun intended) to regulate the watch for their customers. And Seiko don't. But then, this takes a skillful person about 10 minutes.LOL, no.
With Rolex, every single one they produce is tested and guaranteed to be within the specified accuracy of -4 / +6 spd, and internally I think they strive for a bit better, perhaps half that.
With Seiko, they also guarantee them to be within the specified accuracy, which, for the 7S26 movement I think is -20 to +40. That means some can be really accurate, while the next one can easily run 20 seconds or more fast.
It's the luck of the draw and it seems you've done well.
My 09 is good as well at 3s to 9secs a day.
What is annoying is its power reserve seems to be less than 24hrs when wound circular for 3 minutes.
I often find it stopped off the wrist even though i have given it the same as other automatic watches.