Pro Trek by Casio PRG270-4A G-Shock G-Steel 35th Anniversary Edition GSTB100TFB-1A Dive time and surface interval

Dive time and surface interval measurement function

Hands and hour markers are deep-filled with Swiss Super-LumiNova® BGW9 that emits a long-lasting blue glow in dark conditions

This stylish watch

Receives time calibration radio signals which keep the displayed time accurate

Pro Trek by Casio PRG270-4A G-Shock G-Steel 35th Anniversary Edition GSTB100TFB-1A Dive time and surface intervalPro 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