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Review | Casio G-SHOCK Rangeman GW-9400-1ER

Features & Specification

The face of the Rangeman is shrouded in mineral glass, inset below a protective resin buffer. Whilst not as resistant to scratches as sapphire crystal, it does have an advantage in a watch designed for adventure as it cracks rather than shatters on impact, meaning it has a greater resistance to direct blows.

Beneath that mineral glass is a solar cell, so battery replacement can be all but forgotten and certainly for several years, if not decades. The dial shows the charge state, from low to medium and high but don't expect to see high very often, unless you regularly expose it to bright sunlight. It's quite satisfying seeing it reach this level (for a start, it means you are spending lots of time outside, in the sunshine!) but in that respect our Rangeman stayed the majority of the time on medium. It was difficult to achieve much else as we completed our review in dank mid-winter. Should it move to low then it’s worth giving it a charge, even if that simply means leaving it a windowsill for a few hours, as it takes several to replenish under indoor lighting. However, as it will endure seven months on full charge without further exposure to light this isn’t something that is ever a concern. Casio call this rechargeable technology Tough Solar and it is one of our favourite features of the watch.

We also find a Triple Sensor and this is something which (currently) really sets the Rangeman apart. Often referred to as an acronym of ABC, it provides an Altimeter, Barometer and Compass, all easily accessible from that large side button, ringed in red and where the crown would sit on a traditional timepiece.

The Rangeman even includes a thermometer and benefits from Multi Band 6. This means that it maintains the correct time by automatically picking up a radio signal from stations in Europe, the USA, China and Japan. Once the initial setup has taken place you should never need to adjust the time again, even when travelling or for daylight saving time in the UK. And on that note, its automatic calendar allows for leap years and months of different length.

Casio G-SHOCK Rangeman GW-9400-1ER Casio G-SHOCK Rangeman GW-9400-1ER

Dipping further into the extensive specification, we find a sunrise and sunset feature, using your current time zone, date and latitude. We’re not sure we would use this, but you may find it useful if you’re planning an all day-adventure with an early start and don’t have access to the internet.

The Rangeman is mud-resistant (its case and buttons are sealed to prevent mud and dirt ingress) and water-resistant to 200 metres (20 BAR) so is suitable for swimming, snorkeling and surfing. We've used it for all three and it's proven reliable, easy to read and comfortable to wear. That infinitely adjustable strap, as we found, makes it a good choice for wearing over a winter wetsuit.

Of those rugged features, it will operate to -10c so is ideal for mountaineering and snowboarding sessions and should you be unfortunate and wipeout against rock rather than on fresh powder, it’s highly shockproof too, of course. There is also a useful stopwatch and chronograph feature for timing events and its easy to operate, with simple push button stop/start and a clear, concise display.

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