Shop Citizen Satellite Timekeeping watches. The Satellite Timekeeping System allows our watches to set the correct time and date by receiving time signals from GPS satellites orbiting 20,000 kilometres above the earth. With coverage across 40 of the existing UTC standard time zones, watches with Satellite Wave will ensure the most accurate time you will find in any conventional watch. Whether you trek through the desert, cruise the oceans or climb a snowy mountain, you never need to worry about having the correct time.