GPS Solar Chronograph GPS controlled time and time zone adjustment Chronograph measures up to 6 hours in 1/5 second increments Magnetic resistance 4,800A/m Perpetual calendar correct to the year 2100
Powered by Light EnergyNo Battery Change RequiredLasts for 12 months after full chargeEnergy depletion forewarning functionInstant-start function andOvercharging Prevention function. Product Features Dial: 35mm Case: 49 (with crown) x 45