SUUNTO Observer SR Wrist-Top Computer Watch with Altimeter, Barometer, Compass Multifunction: time, altimeter, barometer, and compass; shock-resistant and water resistant to 330 feet/100 meters Calendar clock pre-programmed to the year 2089 3 daily alarms, dual-time display, and a stopwatch with lap and split time measurement Altimeter allows you to view the current altitude with a range up to 29,500 feet and a resolution of 10 feet Compass's bubble level ensures a reading accuracy to within 2 to 3 degrees