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Comparison Casio G-Shock GST-W300G-1A9 vs Casio G-Shock GST-S100G-1A

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Casio G-Shock GST-W300G-1A9
Casio G-Shock GST-S100G-1A
Casio G-Shock GST-W300G-1A9Casio G-Shock GST-S100G-1A
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Gendermen'smen's
Country of originJapanJapan
Mechanism
Movement typequartzquartz
Accuracy+/- 15 s/month+/- 15 s/month
Power sourcesolar batterysolar battery
Power reserve indicatior
Dial
Dial typemixedmixed
Type of indexmarksmarks
Colour
black
black
Hand shift feature
Backlightluminous / electronicluminous / electronic
Features
alarm
stopwatch
timer
day of the week
date
month
world time
radio controlled
alarm
stopwatch
timer
day of the week
date
month
world time
radio controlled
Case and strap
Case shaperoundround
Case materialplastic
plastic /steel/
Colour
golden with black /stainless steel/
golden with black
Glass materialmineralmineral
Straprubber straprubber strap
Strap colourblackblack
Claspclassic (with buckle)classic (with buckle)
General specs
Waterproof200 WR / 20 ATM200 WR / 20 ATM
Shockproof
Diameter (width)49 mm52 mm
Thickness15 mm16 mm
Weight84 g195 g
Added to E-Catalogjuly 2017june 2017

Power reserve indicatior

An indicator showing how long the watch can run without winding, changing the battery, recharging, etc. It is found in models with any type of mechanism (see the relevant paragraph). Although the power reserve indicator is quite approximate, it still makes it easier to monitor the status of the device and reduces the risk of being left without a working watch at the wrong time.

Note that the End Of Life function (see below) in this case is not considered a power reserve indicator, although its role is generally similar.

Diameter (width)

The nominal size of a watch case in diameter (for round cases) or width (for other options, see "Case Shape"). In the most miniature modern models, this size is 21 – 25 mm or even less, among the largest there are cases of 46 – 50 mm and even larger.

Larger watches are more convenient in the sense that the dial readings are better visible on them, and it is easier to provide various additional functions in the design. On the other hand, small watches look neater and create less discomfort directly when worn. In addition, female models (see "Gender") are traditionally made more miniature than male ones. So the choice for this indicator depends mainly on the intended specifics of the application: for example, large cases are best suited for outdoor activities and tourism, about 41 – 45 mm in size, for household wear (regardless of gender) — about 31 – 35 mm, and as an accessory to an evening dress, a small watch of 30 mm or less would be more appropriate.

Also note that the size of a compatible strap/bracelet is associated with this indicator — see "Strap Width" for details.

Thickness

The thickness of the watch case. A fairly obvious parameter; we only note that nowadays it is customary to attribute watches with a thickness of less than 7 mm to ultra-thin models. This design has both aesthetic and quite practical meaning — a thin watch will be useful for those who wear narrow sleeves with tight-fitting cuffs.

Weight

Total weight of the watch. As a rule, it is indicated taking into account the complete strap/bracelet.

The lightest modern watch weighs no more than 50 g. The most popular models weigh 50 - 100 g, and weight more than 150 g most often means not only a large, but also a fairly advanced device, usually for sports and tourism purposes.

Both light and heavy weight have their advantages: light watches create minimal inconvenience when worn, while massive watches are subconsciously perceived as a solid and reliable device.
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