Comparison Casio G-Shock GWG-1000-1A vs Casio G-Shock GWG-1000-1A3

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	Casio G-Shock GWG-1000-1A	Casio G-Shock GWG-1000-1A3
	from £456.71 Outdated Product	from £599.36 up to £829.99 Compare prices 4
all specs only differences
User reviews	₁ ₁ ₁ ₀	₁ ₁ ₁ ₀
TOP sellers	Find prices on Amazon.uk Find prices on eBay.uk	Jurawatches.co.uk £660.00 Buy in shop WatchNation.com £660.00 Buy in shop Joom UK £830.00 Buy in shop
Main		Shockproof body. Sapphire glass. Large set of sensors. Alarm. Timer. Stopwatch. Display of the day of the week and month. World time. Solar battery. High water protection (WR200M). Energy saving mode. Vibration protection. Dirt protection. Hourly signal. Calendar until 2099.
Gender	men's	men's
Country of origin	Japan	Japan
Mechanism
Movement type	quartz	quartz
Caliber		module 5463
Second hand	+	+
Accuracy	+/- 15 s/month	+/- 15 s/month
Power source	solar battery	solar battery
Power reserve indicatior
Dial
Dial type	mixed	mixed
Type of index	marks + arabic	marks + arabic
Colour	black	black
Hand shift feature
Backlight	luminous / electronic	luminous / electronic
Features	alarm stopwatch timer day of the week date month world time compass altimeter thermometer barometer radio controlled	alarm stopwatch timer day of the week date month world time compass altimeter thermometer barometer radio controlled
Case and strap
Case shape	round	round
Case material	plastic	plastic
Colour	black	black
Glass material	sapphire	sapphire
Strap	rubber strap	rubber strap
Strap colour	black	green
Clasp	classic (with buckle)	classic (with buckle)
General specs
Waterproof	200 WR / 20 ATM	200 WR / 20 ATM
Shockproof
Diameter (width)	56 mm	56 mm
Thickness	18 mm	18 mm
Weight	119 g	119 g
Added to E-Catalog	november 2015	november 2015

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Caliber

A caliber can be described as the type of movement used in a watch. It is expensive and impractical to design a unique movement for each watch model, so most manufacturers often use the same movement in different watch models, sometimes with significantly different designs. The term "caliber" is due to the fact that initially the type of movement was designated by a number (in inch lines) corresponding to its largest size; however, today unique names or alphanumeric indices that are not directly related to sizes are widely used.

Knowing the name of the caliber on which the watch you are interested in is built, you can, if desired, find more detailed information about the mechanism and determine how its characteristics meet your requirements.

Strap colour

The main colour of the watch strap/bracelet.

The most popular shades nowadays are stainless steel(the colour of most metal bracelets, not necessarily steel ones), golden(bracelets made of gold and "gold"), black(strap made of different materials, including rubber and nylon, as well as separate bracelets) and brown(mostly leather straps). Other colour options include beige, white, yellow, green, camouflage ( military style), red, orange, pink, silver, grey, blue, and purple.

In addition, some models of watches are equipped with two-tone straps. Most often, white, gold and black are used as secondary colours, and this colour is specified after the main one — for example, “blue with white” or “stainless steel with gold”. If this paragraph lists several colours separated by commas — for example, "black, red, blue" — this means...that the watch is either sold in several versions that differ in the colour of the strap, or comes with several interchangeable straps / bracelets of the corresponding colours at once. This nuance should be clarified separately.