Amazon.com Product Description:
Bring together style and functionality with the Suunto Observer wrist-top computer, an altimeter, barometer, and compass in one. This Observer model comes with a stainless-steel housing and stainless steel elastomer strap and is one-third smaller than earlier Suunto wrist-top computers, ideal for those wanting a more compact instrument. Waterproof to 100 feet, the Observer is designed for outdoor use with a rugged, shock-resistant body and backlit dial.

Suunto has improved its altimeter to allow the Observer's logbook to display and record at the same time. The altimeter allows you to view the current altitude with a range up to 29,500 feet and a resolution of 10 feet. The Observer features 24 hours of logbook memory, and the improved logbook stores up to 40,000 feet of data. With the push of a button, you can measure ascent and descent rates between stages with altitude simultaneously. The barometer allows you to measure the temperature in Celsius or Fahrenheit, measure absolute pressure, and follow changes in barometric pressure and temperature.

The Observer's compass shows directional bearing in degrees and cardinal or half-cardinal point. There is a north-south arrow, and a bearing tracking function displays locked bearing, actual bearing, and the difference between these declination adjustments. The compass's bubble level ensures a reading accuracy to within 2 to 3 degrees.

Watch functions include displays for day, time, and date with three programmable alarms plus a stopwatch and countdown timer. The Observer comes with a replaceable battery, which lasts up to 18 months, and a one-year warranty.