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The world’s first timepiece to incorporate a hybrid of GPS and Atomic timekeeping technology the Gravitymaster GPW-1000 connects with both satellites and radiowaves to deliver accurate UTC time across all the world’s timezones.



GPS Satellite Radio
Wave Reception

Prompt display of the correct time worldwide.

Reception of current location positioning and time data from GPS satellites.
Time zone determination through automatic analysis of positioning information
Determination of the current location’s Daylight Saving Time status and automatic display of the correct time.

Absolute Toughness
Universal Accuracy

Multi-band 6

Terrestrial Radio Wave Reception
Reception of time-calibration signals and display of the correct time, even inside buildings in densely built-up districts.

Time-calibration reception in Japan (2 transmission stations). North America, the UK, Germany, and China.

Radio wave reception inside buildings *In the vicinity of windows and other locations with good reception

Energy-efficient reception available.

Triple G Resist

Wearable in the harshest environments
The pursuit of even greater toughness has produced a tough structure that stands up to three types of powerful gravitational acceleration: shocks, centrifugal forces and vibrations. The strength to operate normally under the most brutal conditions enables users to take full advantage of the GPS hybrid radio wave reception system’s unique ability to receive transmissions in any area of the globe.

Band attachment structure
The band is attached securely to the case with 2.3 mm diameter screws inserted from both sides at 1.5x the usual tightening torque. Pipes serving as housings rotate freely to alleviate the problem of loosening due to vibrations.

Tough Solar

A solar panel converts even weak illumination from fluorescent lighting into electric power. A rechargeable battery with a large power storage capacity supports stable operation of various functions with high electricity consumption. You never have to worry about the battery running down because it's a solar battery.

Solar Powered
Casio watches with solar technology, receive thermal and electrical energy that recharges the watch batteries through solar panels on the face of the watch.


Watch the video

One Planet One G-SHOCK

Featuring Klaus Thyman and the GPW1000

Learn More