At a glance Introducing the GRAVITYMASTER, GPW1000 – The World’s 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 satellites. When GPS information is acquired the watch determines your current time zone and judges whether or not your location requires the use of summer time, and updates watch settings accordingly. The combination of these two capabilities and underlying tough structure creates a hybrid timepiece designed and engineered to ensure that you are on time all the time, no matter where you happen to be. Absolute Toughness with Universal Accuracy. Specifications GPS Signal Reception (auto or manual) for time or time & position Tough Solar Power Shock Resistant Triple G Resist Tough Movement Auto hand home position correction Smart Access Electronic Crown w/Quick-lock 200M Water Resistant LED Super Illuminator Light Neo-brite Luminous Hands and Markers Beeper Alarm Module: 5410