Casio to Release GRAVITYMASTER Special Model with Red Brand Color Accents

A G-SHOCK Featuring New Carbon Core Guard Structure


Basel, March 20, 2019 — Casio Computer Co., Ltd., announced today the release of a new edition to the aviation concept GRAVITYMASTER series, part of the G-SHOCK brand of shock-resistant watches. The GWR-B1000X is a limited-edition model featuring accents of the G-SHOCK red brand color.

Like its base model GWR-B1000, the new GWR-B1000X is equipped with a new Carbon Core Guard structure for shock resistance, but this special model features accents of the red brand color of G-SHOCK throughout the watch—from the inner laminate of the carbon bezel to the in-dial ring and G-SHOCK logo. Also carried over from the base model GWR-B1000 is the use of carbon composite material in the case and a carbon-fiber* insert band with excellent tensile strength to withstand use in the harshest conditions. These carbon materials give the watch shock resistance, rigidity, and resistance to degradation—the same properties that qualify carbon materials for use in aircraft fuselage parts. The GWR-B1000X also employs carbon composite material in the dial.

The base model GWR-B1000 uses a carbon monocoque case that seamlessly integrates the case and case back. The result is a watch that boasts high strength while weighing less than any previous GRAVITYMASTER series watch. The GWR-B1000X also features TRIPLE G RESIST technology to withstand shock, centrifugal force, and vibration, and all of its externally exposed metal parts are made from rust-resistant titanium.

  • TORAYCA® carbon fiber from Toray Industries, Inc.



Triple G Resist (shock resistant, centrifugal force resistant, vibration resistant), rust-resistant
Water Resistance
200 meters
Radio Frequency
77.5 kHz (DCF77: Germany); 60 kHz (MSF: UK); 60 kHz (WWVB: USA); 40 kHz (JJY: Fukushima, Japan) / 60 kHz (JJY: Kyushu, Japan); 68.5 kHz (BPC: China)
Radio Wave Reception
Automatic reception up to six times a day (except for use in China: up to five times a day)
Communication Specifications
Communication Standard
Bluetooth® low energy
Signal Range
Up to 2m (may differ depending on surrounding conditions)
1 second; measuring capacity: 24 hours; fly back; direct timing start
Countdown Timer
Measuring unit: 1 second (maximum 24 hours)
1 independent daily alarm
Other Functions
Mobile Link functions (world time: over 300 cities, auto time adjustment, One-Touch Time Adjustment, easy watch setting), day and date display, full auto-calendar, LED light (super illuminator and afterglow), battery level indicator
Power Source
Tough Solar power system (solar-charging system)
Continuous Operation
About 18 months with the power-saving function* ON after full charge
  • Power-saving after a certain period in a dark location
Size of Case
50.1×46.4×16.9 mm
Total Weight
Approx. 72g
  • The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Casio Computer Co., Ltd. is under license.