Description of Suunto Observer St Watch Suunto Observer measures your vertical ascents and descents, as well as the total number of runs skied and shows all that easily with one press of a button. It provides you with reliable information on barometric pressure and temperature and functions as a digital compass. Additionally, it has a calendar, clock, dual time display, and a stopwatch. Its timeless design makes it wearable in any casual situation; it includes an easy-to-read display with an extra-ordinarily wide viewing angle, electro-luminescent backlight and a user-replaceable battery. Because of its moderate size and stylish design it is perfectly suitable for both men, as well as women. For extra toughness and reduced weight, Suunto Observer is also available in titanium. Features: Altimeter: Altitude, vertical speed, logbook function with quick-access button, memory capacity 99 logs, history memory, alti/baro lock, temperature compensation Barometer: Sea level pressure, absolute pressure, weather trend indicator, temperature, automatic 4-day barometric memory, alti/baro lock Compass: Bearing, cardinal bearing, bearing tracking, North-South arrow, declination setting Chronograph: Calendar, 3 alarms, dual time, stopwatch with 99 split/lap times Material options: Observer St - stainless steel housing with stainless steel elastomer strap (100 g) Water resistant to 100 m (330 ft)