A Seiko question….
I have a Seiko 5, about 18months old. Used to run less than 30 seconds fast a day which was more than acceptable, every few days (after realising I arrived early for something!) I’d turn it back a few minutes.
The last couple of weeks I’ve noticed that it’s losing time now, maybe 60seconds a day (which means it’s actually slowed by 90secs). I now arrive late to things.
I notice it’s got a small adjuster on the back of the mechanism (it’s a 7S26C) is it worth opening the back and giving it a very small tweak or am I likely to make things even worse?
It’s probably not worth spending out on someone else looking at it, but would like it keep better time.
Cheers