Casio GA-100CM-8AER G-Shock 47mm 20ATM


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Basic Info

Ref. No. GA-100CM-8AER
Code mid-16977
Movement Quartz
Bracelet material Rubber
Condition 0 (unworn)
  With box
  With papers
Gender Men's watch/Unisex
Location Germany, Simmerath
Price 119 € (= $131)
Availability Available now


Movement Quartz


Case diameter 47 mm
Thickness 14 mm
Waterproof 20 ATM
Glass Mineral Glass
Dial Grey


Bracelet material Rubber
Bracelet length 210 mm
Lug width 29 mm Size guide
Clasp Buckle


Chronograph, Date, GMT


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Auto LED light
For the display of the watch through the LEDs shine out, there is a slight rotation of the wrist.
Shock resistant
the watch makes things without damage. The impact-resistant case offers protection against impact and vibration.
The case is constructed so that it is shielded from magnetic fields.
World Time Function
The world time function displays the time in up to 29 different time zones.
Stop function - 1/1000 sec - 100 hrs. - Split
Elapsed time between the time and end with an accuracy of a few thousandths of a second measured. The measuring capacity of the clock has a range of up to 100 hours.
timer - 1/1 minutes. - 24 hrs (with automatic. Repeat function)
For all those who want to know it exactly: The Countdown timer helps to commemorate special or recurring events by it at a preset time emits an acoustic signal. Then he counts automatically again by the preset time. The time can be specified in the minutes and up to 24 hours in advance. This function is especially useful for the daily dose of medication or interval training.
5 daily alarms
Daily Repeating Events reminds of the daily alarm in which an acoustic signal sounds at the set time. This model has five independent alarms - particularly useful for daily intake of medication or to maintain regular appointments.
Snooze function
After you stop the alarm signal, it beeps again automatically after a few minutes.
Speed display
The average speed for a distance can be measured. Easy to Start and then enter the distance at the start and achieve the objective of the stopwatch press - Nice is the average speed is displayed.
Automatic calendar
Once set, the automatic calendar always displays the correct date.
12-/24-hour format
The time display is optionally adjustable to 12- or 24-hour format. In the 12-hour mode, a "P" in the display for the second half day, i.e. 12 noon to 23.59 pm.
mineral crystal
The hard, scratch resistant mineral crystal protects the watch against unsightly damage.
resin case
Resin consists of synthetic resin and is by its extreme durability and its flexibility the ideal material for bracelets.
2 years - 1 Battery
Ca. 2 years the battery supplies the watch with the necessary energy.
Water leak-classification (20 bar)
Perfect for free diving without devices: the watch is water resistant to 20 bar / 200 meters. The meters refers not to a diving depth, but on the air pressure, which in the context of the water resistance test has been applied. (ISO 22810)
+/- 15 seconds seconds per month
Battery Type
Approx. 55,0mm x 51,2mm x 16.9mm (H x B x T)
Approximately 72.0 g


Information Ltd.

Rathausplatz 3
52152 Simmerath
Tel.: [+49] - (0)2473 - 92 710 0
Fax: [+49] - (0)2473 - 92 710 10
Mobile: [+49] - (0)172 - 172 88 10

Size guide for wristbands

1 | Lug width

The lug width is the width of the strap at the end that is attached to the watch. This is the interior distance between the two lugs (horn-like protrusions) on the watch casing. The strap will fit your watch only if the lug width of the watch is the same width as the strap.

2 | Buckle width

The buckle width is the width of the strap at the buckle end. If you want to keep your watch’s original buckle and replace only the strap, the width of the original buckle must be identical to the strap width. For watches with folding clasps, please choose a strap specially made for your particular clasp.

3 | Strap length

The strap length is the combined length of the short strap side 3A (without buckle) and the long strap side 3B. For metal straps, the length of the strap including the clasp is measured in the closed position.

4 | Strap thickness

Strap thickness is the height of the strap. Many leather straps thin out towards the buckle end, or “taper”. If you want to keep your watch’s original buckle and replace only the strap, the strap thickness must match the height of the original buckle. For watches with folding clasps, please choose a strap specially made for your particular clasp.