Bart H. wrote a review of Suunto Core Altimeter Watch on July 18, 2009
I haven't used this watch anywhere in the back country yet, but it has been very timely in letting me know about approaching storms, and altitude changes. I've read other reviews harping on the batteries, but mine arrived from backcountry.com 'off'. The instructions state how to turn it on, and I haven't had any issues at all. Great watch. The simpleness of it is great, and underwrites the things it can do. It did take a little getting used to the subdued display, and if you wear polarized sunglasses you can't see the display at all, so keep that in mind.