It's a black (or dark grey?) Fenix 3, not optical heart rate, not sapphire, that I bought from REI about 18 months ago. It's in fine shape, barely a minor scratch on the casing, I can post or send pictures if there's interest.
I don't know what a Fenix 3 goes for these days and I'd be happy to keep the watch, I just really like the Spartan. Anyone interested?