Truly a 'niche' product, the Suunto Observer defies classification.  It's a sport watch, make no mistake, but Casio's line (particularly the 'G-Shocks') offer more for the money and MUCH increased battery life.  It's several 'instruments' rolled into one, offering barometer, altimeter, compass and thermometer, but in a watch case, and, surprisingly, blending them into an attractive package.