Pro Trek by Casio PRG270-4A Laco Chronographs PHOENIX 861916 all add up to a

all add up to a more comfortable fit

Automatic caliber BALL RR1303-C

Auto altitude correction using location information

diameter of 40 mm

Pro Trek by Casio PRG270-4A Laco Chronographs PHOENIX 861916 all add up to aPro Trek by Casio PRG270 4A "Introducing the Solar Powered PRG270 which incorporates Casio's new Triple Sensor Version 3 engine. Advanced CASIO original technology has allowed for a 95% smaller direction sensor and 90% reduction in sensor power consumption compared to previous models. Despite their smaller size, the new sensors in this model delivers better accuracy and energy efficiency. This model can measure Altitude in 1m increments (previously