Just picked up this Seiko 6138 3002. Overall, it looks to be in nice shape--all chrono hands reset correctly, buttons operate smoothly. The only issue I've noticed is some rust at the lugs and some (very small amount) between the crystal and the case.
I'm a watch (and vintage) novice, so not sure if this is grounds for concern... and especially if this is grounds for return--the rust spots were not mentioned in the original description. I really like the watch but don't want to be stuck with a lemon. Thanks for your opinions!