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G-SHOCK MUDMASTER GGB100XM-1A:
MIL-STD-810 Military Watch
Five G-SHOCK watch models underwent mil-spec-810 testing, and one of those models was the G-SHOCK Mudmaster GGB100XM-1A. Built for outdoor work and adventure, the G-SHOCK MUDMASTER GGB100XM-1A combines mud-resistant construction, Carbon Core Guard structure, 200-meter water resistance, Bluetooth® connectivity, and an altitude, barometer, digital compass, and thermometer sensors in a rugged analog-digital design.
Mil-Spec Watch Testing
GGB100XM-1A MIL-STD-810 TEST PROGRAM
In a laboratory test program conducted by Element, a global provider of lab-based testing, inspection and certification services, this Mudmaster military watch was assessed across selected MIL-STD-810 environmental and dynamics tests covering weather, water, temperature, dust, vibration, shock, and low pressure. Discover more G-SHOCK military watches designed for demanding conditions.
Element collaboration
The environmental tests this model underwent provide further validation that G-SHOCK models are able to withstand the harsh conditions the tests are designed to simulate.
Mudmaster GGB100XM-1A: Tested Using Selected MIL-STD-810 Methods
The GGB100XM-1A endured a 12-procedure environmental and dynamics test program. Testing included low pressure (altitude), blowingrain, salt fog, freeze/thaw, random vibration, mechanical shock, high temperature, low temperature, immersion, aggravated humidity, solar radiation, and blowing dust.
The laboratory report recorded no physical or visual damage to thetested samples after each listed procedure. Take a closer look atthe conditions used to evaluate this tough G-SHOCK Mudmaster military watch and see why G-SHOCK has some of the toughest watches on the planet.
Weather, Water, and Moisture Testing of the GGB100XM-1A
Blowing rain, immersion, salt fog, aggravated humidity, and freeze/thaw procedures tested the GGB100XM-1A against various simulated weather conditions. These tests brought water, moisture, and salt exposure to the bear against the Mudmaster design, yet these conditions align naturally with the GGB100XM-1A’s mud-resistant structure and 200- meter water resistance, both designed for wet and gritty outdoor environments.
During the blowing rain test (pictured here), the GGB100XM-1A was subjected to sustained wind speeds of 40 MPH while pelted with water at the incredible rate of 4 inches of rain/hour while the watch was in full operation. This G-SHOCK tough military watch passed the test with the standardized response of "no physical or visual damage." With water resistance of 200 meters, Casio didn’t expect anything less than success for the GGB100XM-1A in simulated blowing rain.
Another environmental assessment is the salt fog test, an accelerated screening test for corrosion vulnerability meant to identify weaknesses that can arise from salt deposits in coastal and maritime environments. The salt fog test is a simulation of environmental conditions such as:
- A ship or boat in rough water, when breaking waves throw fine droplets over decks and on equipment
- At the beach during strong onshore winds or storms, when surf and whitecaps generate airborne sea-salt aerosol
- During marine fog, drizzle, or overnight condensation near the coast, when salt particles already deposited on a surface can dissolveagain in moisture, creating a conductive saltwater film
- Near offshore platforms, naval bases, coastal airfields, and amphibious operations where equipment may be stored, transported, or operatedin exactly these salt-laden maritime conditions
- For any outdoor marine activity or excursion such as surfing, sailing, saltwater fishing, beach running, or kayaking, where one leaves awatch wet with seawater and then lets it dry repeatedly
Element labs tested the GGB100XM-1A under MIL-STD-810G by exposing the military watch to a 95°F, roughly 5% salt-mist environment for two 24-hour cycles. Each exposure was followed by a 24-hour drying period, simulating the repeated wet-and-dry salt exposure that can occur in coastal and marine conditions. The watch remained powered and operational during testing, and Element reported no visible damage or corrosion after the full test.
Built to take on salt-sprayed shores, hard-charging decks, and whatever else the elements deliver, the GGB100XM-1A military watch emerged from MIL-STD-810G salt fog testing with no visible corrosion or damage.
This achievement is made possible by over 40 years of expert G-SHOCK design and craftsmanship. The GGB100XM-1A includes a shock, water, mud, and dust-resistant structure, allowing it to endure the elements as only a G-SHOCK military watch can do.
Heat, Cold, Solar Radiation, and Blowing Dust Tests
High- and low-temperature testing, solar-radiation heat loading, and blowing-dust procedures reflected environmental conditions that can challenge outdoor gear. The GGB100 platform uses a Carbon Core Guard structure with a carbon fiber-reinforced resin case to help protect the module, while its mud-resistant construction is designed to help keep dust and mud from intruding
Low temperatures can make electronics perform poorly or expose weak points, and this is what the mil-spec freeze/thaw test simulates. Following MIL-STD-810H, the watches underwent a 19-cycle freeze/thaw profile that moved from about 22°C (72°F) to chamber temperatures as low as -15°C (5°F). Technicians monitored the watches for frost, allowed them to thaw overnight after the cycling, and recorded test-unit temperatures as low as about -17°C (1°F). The technicians at Element reported no physical or visible damage, and all watches remained functional at the conclusion of the test, including the GGB100XM-1A.
In the freeze/thaw test, condensation is often the biggest practical threat. Moving a cold watch into warm, humid air can create moisture on—or, if seals are compromised, inside—the watch. The GGB100XM-1A, however, performed admirably.
From deep freeze to the thaw that follows, this G-SHOCK remained fully functional and visibly undamaged—built to keep going when harsh temperature swings put gear to the test.
Explore the G-SHOCK MUDMASTER GG-B100 series to compare related designs, colors, and field-ready functions.
*Note: Only the GGB100XM-1A was mil-spec tested within the GGB100XM series.
Random Vibration, Mechanical Shock, and Altitude Testing
Different kinds of force call for different types of testing. Random vibration, mechanical shock, and low-pressure altitudeprocedures assessed G-SHOCK military watches under dynamic movement, impact, and reduced-pressure conditions. Together, theseprocedures add another dimension to the G-SHOCK reputation for shock-resistant design.
In the mechanical shock test, the GGB100XM-1A was strapped to a shock tower that rose to a height of about 3 meters (almost 10 feet) before it dropped, sending shock waves through the military watch as it was subjected to a high-intensity impact. The GGB100XM-1A was dropped 18 times in this fashion, putting its shock resistance to the test. G-SHOCK watches are known for legendary shock protection, and this G-SHOCK passed the test with a lab result that stated, "No damage was noted during testing."
The Mudmaster GGB100XM-1A undergoes a MIL-STD-810 random vibration test.
The result is a G-SHOCK Mudmaster watch designed for people whose daily routines may include rugged travel, outdoor recreation, hands-on work, and unpredictable conditions.
The high-altitude testing consisted of a chamber test where the air temperature was kept at a stable 74 degrees while the air pressure was reduced to 8.29 PSIA (Pounds Per Square Inch Absolute). That's a simulation of about 15,000 feet above sea level, and the military watch was tested in that environment for about an hour and a half. During that time, the Mudmaster GGB100XM continued functioning throughout the test and received the standardized test result of "no physical or visual damage."
The Mudmaster GGB100XM-1A undergoes a MIL-STD-810 random vibration test.
Field Ready Functions
MUDMASTER Construction and Field-Ready Functions
The lab test program is only one part of the GGB100XM-1A story. Explore the wider G-SHOCK Mudmater collection for tough watches built around mud resistance, Carbon Core Guard construction, practical sensor tools, and outdoor- focused functionality.
The GGB100XM-1A offers ABC (altitude, barometer, and compass) sensor capability, adding a thermometer and Bluetooth® smartphone connection to its rugged analog-digital design, giving you useful environmental information and connected watch functions in one Mudmaster timepiece.
Explore Other MIL-STD-810 Tested G-SHOCK Models
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