Just bought the orange and black GDF100 off of eBay, I never would've thought I could find a watch with an altimeter, barometer, and thermometer for just $80, absolutely insane. I've been watching and reading some reviews, and I can't wait to get it. While I wait I'd love to see some pics of your GDF100's. Or maybe a size comparison with some G's that I'm familiar with (6900, 5600, 7900, etc.). I was expecting it to be about the size of a Riseman but apparently it's closer to the GA/GD1XX series?