Each of the new watches is powered by a new GPS Solar movement, Caliber 3X62, whose enhanced reception of solar signals allowed for greater freedom in design. The watch connects automatically up to twice a day* to the GPS network to maintain its precision of one second every 100,000 years.
*When the dial detects sunlight, the watch connects to the GPS satellite network and adjusts automatically to the correct time. If the watch is hidden from light, it remembers the time of its last successful manual connection and attempts to receive the GPS signal again at that same time.