G-Shock GPW1000-1A Gravity Master Seiko Ananta Additional features include an aluminum

Additional features include an aluminum ring on the bezel

Silicon Balance Spring Yes

Home can be determined geographically

and the G-SHOCK logo are accented with colors that are typical of those seen on high-tech gadgets

This lineup provides a choice of four colors

G-Shock GPW1000-1A Gravity Master Seiko Ananta Additional features include an aluminumG Shock GPW1000 1A Gravity Master GPS Atomic Solar Hybrid Men's Watch Introducing the GRAVITYMASTER, GPW1000 The Worlds First GPS ATOMIC SOLAR HYBRID with CASIO original GPS Hybrid radio controlled technology built inside a TRIPLE G Shock Resistant structure. This unique technology combines Multi band 6 capability to receive any one of six time calibration signals around the globe with a receiver that acquires position and time information from GPS