ExpiredCasio Pro Trek

Key FeaturesAtomic Timekeeping

Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)

Receives time calibration radio signals which keep the displayed time accurate

Pro Trek Version 3 Triple Sensor

Sensors Include Altimeter, Barometer/Thermometer, and Digital Compass

Pro Trek Tough Solar Power

Integrated Solar Panel That Uses Sunlight and UV Light to Recharge the Watch’s Battery