When your lifestyle demands a watch that does more than tell time, Suunto steps up. The ultimate tactical watch, the Suunto Core looks deceivingly low-profile but boasts a multitude of tools. When you need to know your altitude, ascent and descent rates, the Suunto Core comes complete with an altimeter that features a range of up to 29,500 feet. The difference measurement allows you to track your progress while the log stores your movements. It senses movement then switches between altimeter and barometer intuitively. Changes in elevation are recorded when you're climbing, and when you take a break, the changes in barometric pressure are recorded. The Core gives accurate data gathering through its easy-to-navigate interface all while withstanding the harshest of conditions.