Casio G-Shock GD-120CM review

Watches…..some wear them for the “bling” factor, others want practicality, some want theirs to do everything short of making coffee and then there those who want them tough and durable. I guess to a certain extent a watch is a fashion statement, but for me it speaks more of a man’s character….and yes, it’s nice if it can do more than simply telling the time.

Here’s what I want from a watch:

  • 24h time reading
  • Tell the date
  • Stopwatch/timer
  • Back light so that I can still read the time in poor lighting
  • It must be waterproof
  • Have a battery life of at least 5yrs
  • Have a wrist strap that will last me at least 10yrs.


That’s why there’s only one watch I believe the everyday adventurer should wear and that is the Casio G-Shock. Okay….and yes, it looks the part as well. My previous G-Shock was my 1st real watch and met all of the above criteria and more….still ticking after…..years. The only reason I’m not still wearing it is because I was fortunate enough to get my hands on the new GD-120CM form Casio’s G-Shock range. So without any further adue let’s get into the details of the GD-120CM. It’s a known fact by now that G-Shock is synonymous with durability, longevity and tough… we won’t waste time on what the G-Shock range is all about. The GD-120 refers to the “frame” or “chassis” on which this watch is build. CM stands for camouflage and “8” to the camouflage colour.


Let’s look at the specs:

  • 7yr battery life
  • Blue LED backlights (super Illuminator) bright to even to map readings in poor light
  • Waterproof up to 20bar or 200m
  • Mineral Glass
  • Shock Resistant
  • 200-meter water resistance
  • Case / bezel material: Resin
  • Resin Band
  • Auto light switch, selectable illumination duration, afterglow
  • Flash alert
    Flashes with buzzer that sounds for alarms, hourly time signal
  • Multi Time (4 different cities)
  • World time – 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off, Home city/World time city swapping
  • 1/100-second stopwatch
    Measuring capacity: 23:59’59.99”
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Countdown timer
    Measuring unit: 1/10 second
    Countdown range: 24 hours
    Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
  • 5 daily or one-time alarms
  • Hourly time signal
  • Full auto-calendar (to year 2099)
  • 12/24-hour format
  • Button operation tone on/off (silent mode)
  • Regular timekeeping
    Digital: Hour, minute, second, pm, month, date, day
  • Accuracy: ±15 seconds per month
  • battery life: 7 years on CR2025
  • Size of case:?55?×?2?×?17.4?mm
  • Total weight: 72 g

G1  G5

I found that the bulk of the watch is something to get use to, however it is light, sits well on the wrist and all functions are user friendly and easy to operate. The watch was really well presented in matching camo pattern aluminium case placed in a camo G-Shock box. The wider wrist band with double buckle pins makes it quick and easy to fit and renders a certain aggressive look. The GD-120CM has a negative display which is meant to make reading the time (without the LED back light)in poor lighting conditions easier. It is speculated that this is based on the outcome of a study did by the men in white coats at the US Marines. All in all, nothing bad can be said of the Casio G-Shock GD-120CM range unless you want a watch that can do more (tell the moon cycle, ocean tides, direction etc.). All Casio’s should come with a 1 year warranty that can be extended with another 6 month (18 months in total) by registering the serial number on the e-warranty site. If you want a watch that your grand kids can inherit, invest in any of Casio’s G-Shock watches.


By: Hector Jamieson

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