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.

FEATURES:

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Fine Resin Composite Band

Fine Resin Frame

Sapphire Crystal

SPECS:

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GPS Signal Reception (auto or manual) for time or time & position

Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China)

Receives time calibration radio signals which keep the displayed time accurate

Auto receive function (up to 6 times per day/up to 5 times per day for China)

Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPC

Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHz

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

World Time

40 times zones (27 cities + UTC), city code display, daylight saving on/off, home city/world time swapping)

Beeper Alarm

1/20 second chronograph

Measuring capacity: 23'59.95"

Measuring modes: Elapsed time

Countdown Timer

Measuring unit: 1 second

Countdown range: 24 hours

Countdown start time setting range: 1 to 24 hours (1-minute increments)

Full Auto-Calendar (pre-programmed until the year 2099)

Day/Date Display

12/24 Hour Formats

Accuracy: ±15 seconds per month (with no signal calibration)

Storage Battery: Solar Rechargeable Battery

Power Saving Function

Low Battery Alert

Approx. Battery Life: 7 months on full charge (without further exposure to light)

Module: 5410

Size of case/total weight

GPW1000 66.0 x 56.0 x 18.8mm / 126g