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Deal.ai › Casio › Wrist Watches
Casio
Casio G-Shock G-Steel GST-S100G-1A Watch

Casio G-Shock G-Steel GST-S100G-1A Watch

4.7(55 ratings)

Best price now

$207.00at CreationWatches.comObserved at 9:43 AM

31% under what the other stores charge

Compared across 16 stores. Prices are checked against each store and labelled with when.

Visit CreationWatches.com

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Price facts

  • Lowest price today: $207.00 at CreationWatches.com (checked Nov 9, 2026).
  • Checked at 16 stores.

Our take on the Casio G-Shock G-Steel GST-S100G-1A Watch

The GST-S100G-1A is a G-Steel series G-Shock: a stainless steel-cased, quartz analog-digital hybrid built for rough use. It pairs a black resin strap with a steel bezel, adds Twin Sensor functions (compass and thermometer), and stays tough with shock resistance and 200 m water resistance. It suits people who want a heavy-duty everyday watch with analog hands and digital readouts. Against resin G-Shocks it is heavier and more expensive-feeling; against analog steel sports watches it offers far more sensors and abuse tolerance but less refinement.

Best forOutdoor and field useRough daily wearFans of analog-digital G-ShocksBuyers wanting steel with G-Shock toughness
Pros
  • Shock-resistant steel case and bezel
  • 200 m water resistance
  • Compass and thermometer sensors
  • Analog hands plus digital display
  • Tough mineral glass and resin strap
Cons
  • Heavy on the wrist
  • Mineral glass scratches more easily than sapphire
  • Twin Sensor is basic next to triple-sensor G-Shocks
  • Analog hands can be hard to read in low light

Casio G-Shock G-Steel GST-S100G-1A Watch prices at every store

  • CreationWatchesNew

    In stock

    $207.00Free shippingObserved at 9:43 AM
    Visit CreationWatches
  • CreationWatches.comNew

    In stock

    $207.00Observed at 9:43 AM
    Visit CreationWatches.com
  • NeweggNew

    In stock

    $237.73Free shippingObserved at 9:43 AM
    Visit Newegg
  • eBayNew

    In stockSold by cwtime

    $238.60Observed at 9:43 AM
    Visit eBay
  • Old Northeast JewelersNew

    In stock

    $280.00Observed at 9:43 AM
    Visit Old Northeast Jewelers
  • JaredNew

    In stock

    $300.00Free shippingObserved at 9:43 AM
    Visit Jared
  • Jared JewelersNew

    In stock

    $300.00Observed at 9:43 AM
    Visit Jared Jewelers
  • Eli Adams JewelersNew

    In stock

    $300.00Observed at 9:43 AM
    Visit Eli Adams Jewelers
  • Safa JewelersNew

    In stock

    $300.00Observed at 9:43 AM
    Visit Safa Jewelers
  • dorejewelry.comNew

    In stock

    $300.00Observed at 9:43 AM
    Visit dorejewelry.com
  • CASIONew

    In stock

    $330.00Free shippingObserved at 9:43 AM
    Visit CASIO
  • Casio AmericaNew

    In stock

    $330.00Observed at 9:43 AM
    Visit Casio America
  • SVS Fine JewelryNew

    In stock

    $330.00Observed at 9:43 AM
    Visit SVS Fine Jewelry
  • shoshanyNew

    In stock

    $330.00Observed at 9:43 AM
    Visit shoshany
  • TQ DiamondsNew

    In stock

    $330.00Observed at 9:43 AM
    Visit TQ Diamonds
  • eBayPre-owned

    Availability unknownShips from Japan · duties may applyReturns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $169.26Free shippingObserved at 9:43 AM
    Visit eBay

Store links may earn us a commission. Some prices via Klarna.

Casio G-Shock G-Steel GST-S100G-1A Watch price history

Lowest price we've seen: $207.00 on Nov 9 at CreationWatches.com. Tracked across 15 stores since Nov 9.

What reviewers say

  • 4.7 / 555 ratings

Owners rate it highly, praising its solid build and G-Shock toughness. Common complaints are weight and the limited sensor set.

What people mention
  • BuildPraisedOwners say the steel case and bezel feel solid and take knocks well.
  • WeightCriticisedSeveral find it noticeably heavy on the wrist compared with resin G-Shocks.
  • SensorsMixedThe compass and thermometer work, but owners call them basic next to triple-sensor models.
  • GlassCriticisedMineral glass is reported to pick up scratches with regular wear.
  • Water resistancePraisedOwners trust the 200 m rating for swimming and wet work.

Specifications

Series
Casio G-ShockSource
Movement Type
QuartzSource
Color (Strap)
BlackSource
Glass
MineralSource

Questions and answers

Is the GST-S100G-1A good for swimming?
Yes. It is rated to 200 m water resistance, so swimming and showering are fine. Avoid pressing buttons underwater.
How does it compare with other G-Shock models?
It is heavier and more steel-focused than resin models like the DW-5600, and its Twin Sensor is simpler than the triple-sensor Rangeman or Mudmaster lines.
Does it have a compass and thermometer?
Yes. The Twin Sensor provides a digital compass and thermometer, shown on the digital display.
What is in the box?
The watch, a Casio manual and the standard presentation box. No extra strap is included.
Is the glass sapphire?
No. It uses mineral glass, which resists knocks but scratches more easily than sapphire.
Does it work for small wrists?
The case is large and heavy, so it sits best on medium to large wrists. Try it on if you are unsure.
Where is the Casio G-Shock G-Steel GST-S100G-1A Watch cheapest?
At CreationWatches.com, for $207.00, 31% under what the other stores charge, as of our latest check.
What do buyers say about the Casio G-Shock G-Steel GST-S100G-1A Watch?
Rated 4.7 out of 5 from 55 ratings.
Where can I buy the Casio G-Shock G-Steel GST-S100G-1A Watch?
15 stores we checked sell it, including CreationWatches, Newegg, Jared, CASIO, eBay.

Stores we've priced the Casio G-Shock G-Steel GST-S100G-1A Watch at

  • CreationWatches.com deals and prices
  • Eli Adams Jewelers deals and prices
  • Jared Jewelers deals and prices
  • Newegg deals and prices

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Functions
Luminous, WaterproofSource
Gender
MaleSource
Case Material
Stainless SteelSource