Originally Posted by
markrlondon
(a) Use correct size, high quality screwdrivers for the battery retention clip screws.
(b) Use plastic tweezers (if you need to use tweezers to move bits around).
(c) Be really, really careful. Go slowly.
Worth investing in some silicone grease to VERY lightly re-grease the case back gasket when you replace it. The impregnated foam pads are just right. It doesn't seem like much grease has gone on but it's just enough.
If you haven't done this on another, less valuable, quartz watch then I wouldn't recommend that an Oysterquartz should be your first. But, that said, it is no more difficult then any other quartz watch.