Casio Master Of G-Air GravityMaster 56.5mm Mens Watch Blue

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Casio Master Of G-Air GravityMaster 56.5mm Mens Watch Blue

Name: Casio Master Of G-Air GravityMaster 56.5mm Mens Watch Blue
Brand: Casio
SKU: GWR-B3000A-2AER
Price: 800 GBP
Availability: InStock

Ref. GWR-B3000A-2AER

Among our 152 Casio watchesThis watch£800

Premium

Sits in Casio’s upper tier here — more premium than three quarters of the Casio watches we list, which start at £20.

The GravityMaster sits at the top of Casio's aviation line, and this generation makes the case for why that matters. The Carbon Core Guard construction suspends the central case within an outer frame at four points — a dual hollow structure that absorbs shock, vibration and centrifugal force simultaneously, meeting the Triple G Resist standard that the rest of the G-Shock range does not reach. At the heart of it is Tough Movement 2, a solar analogue calibre built in Japan with an active self-correction system: onboard sensors detect hard impacts or magnetic interference and, if either shifts the hands from true, the watch corrects itself automatically. That is not a feature found on most field watches. At 47.3mm across and 14.1mm thick, it wears large but sits flatter than the complexity of the case suggests, and the 56.7mm lug-to-lug measurement is honest about what it demands of the wrist. The black dial is micro-textured to cut glare rather than reflect it, which makes the layout readable in direct sun and in a cockpit without adjustment. GPS, Bluetooth, radio timekeeping and world time all feed into keeping it accurate without manual intervention. The integrated bio-resin band is not removable by conventional means — which, given what the case is engineered to do, makes structural sense.

Reference: GWR-B3000A-2AER
Brand: Casio
Collection: G-Shock
Case size: 56.5mm
Case thickness: 14.1mm
Case material: Resin
Case shape: Round
Dial: Black
Crystal: Sapphire
Movement: Solar
Calibre: 5756
Functions: Chronograph, GMT, Date
Water resistance: 200m
Bracelet / strap: Rubber strap
Strap colour: Blue
Clasp: Buckle
Lume: Luminous
Retailer: Goldsmiths

Additional specifications

Lug-to-lug: 56.7mm
Weight: 102g

Learn more about Casio

Tadao Kashio founded Kashio Seisakujo in Tokyo in 1946 as a machine shop. The company's first success was a finger ring that held a cigarette, and its second was the 14-A of 1957 — the world's first all-electric compact calculator, which used solenoids rather than gears.

Casio entered watchmaking in 1974 with the Casiotron, a digital watch with an automatic calendar that knew the varying lengths of months. The company approached watches as an electronics manufacturer rather than a horological one, and that difference produced the G-Shock.

The G-Shock came from a single engineer, Kikuo Ibe, who broke a watch his father had given him and set out to build one that could not break. The specification was three tens: survive a ten-metre drop, ten bars of water pressure, and ten years of battery life. It took over two hundred prototypes, and the solution was suspending the module inside the case on a cushioned internal structure rather than mounting it rigidly. The DW-5000C shipped in 1983.

It became one of the most durable product designs in any category, adopted by militaries, emergency services, and skateboarders alike, and Casio has since added solar charging, radio and GPS timekeeping, Bluetooth, and full-metal and carbon variants.

Casio also produces the Edifice, Pro Trek, and Oceanus lines, and remains an independent Japanese public company.