How accurately should I try to get my Seiko automatic to run?

[Mabouya]

A few weeks ago I got a new SKX007 (7S26 movement) and so far I love it.

My only real issue is the accuracy. Out of the box it lost about 45 seconds a day. I took it to a local shop (recommended to me on Watchuseek) and they tweaked it. It's now lost a bit over 1 minute over three days, so it's down to about half of the previous rate, -20 seconds a day. I've read that the 7S26 should be good for +/- 15 secs a day or better.

They only charged me $10 for regulating it, and I have no problem paying $10 more to have them try again. Am I asking too much if I take it back, hoping that they can get to, say +/- 10 secs per day?

(The last time I had an automatic was in high-school, so maybe I'm just not used to living with an all-mechanical watch.)

TIA

[spopepro]

I'd ask them to adjust it again. There are some here with much more experience with that movement in particular, so they would know for sure. I feel like a reasonable expectation is not having to set the time more often than moving the date forward.

[Justin@BlackOakVelo]

I have a SKX007J and when I first got it, it lost a minute every few days. The more I wore it, the better it got.

Keep it on all the time.

Great watch by the way, enjoy it.

[Jason Musgrave]

If it's new give it ~3 months before you start messing with it. They take a bit to "settle in."

[TACSTS]

Yeah like others have said - give it a solid couple months of wear and re-time it. That said my SKX007J has averaged about -3 sec since new so the 7S26 movement can certainly be accurate. I also have the same movement in another watch that gains 30-45 sec a day. Its really a crap shoot with these more economical mass produced movements that aren't regulated from the factory. But I think that is part of the charm of these Seiko auto's. Let's face it - if you want accuracy go buy a $10 timex and you'll never need to reset it.

[Mark Kelly]

I know that the crystals used in Quartz watches are cut so as to be at their most accurate when the back of the watch is near body temperature (eg the watch is being worn). Is this also the case with mechanical movements?