G-Shock G100-1BV review

Casio G-Shock G100 Review


Casio G-Shock G100 Watch Review Summary

My rating: 8.5/10. An affordable G-Shock watch that offers excellent value for money.

Hello, today I’m doing a Casio G100 review, for the purpose of this review I’ll specifically be looking at the G100-1BV model. This is a very popular lower priced G-Shock watch, it still features a tough durable design but misses out on some of the more advanced features of other higher priced G-Shock watches.

I hope you enjoy this Casio G100-BV review below.

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G-Shock G100-1BV review

View detailsLatest reviews, ratings and prices: Casio G100-1Bv watch

At the bottom of this article, you can find a list of my recommended retailers to purchase this watch from

Casio G-Shock G100 Watch Review

Dial & Casing Design

G-Shock watches are well known for their shock resistance designs, this is a more affordable G-Shock timepiece but it still keeps to this key function. The casing of this watch is made of stainless steel which is wrapped in a thick resin that gives it this protective shock resistance design.

It’s another typically larger G-Shock watch with a 48mm casing diameter and a thickness of 16mm. This makes it a chunky watch that’s bound to get noticed on your wrist.

The dial uses a popular dual analogue digital display to showcase various bits of information from the functions available, these I’ll go into below. A backlight feature can be used to illuminate the lower portion of the watch for better visibility in dim lit conditions.


G-Shock G100 Features

This affordable G-Shock watch still has quite a few handy features available in its arsenal. These include a shock and magnetic resistance design, though the magnetic resistance is quite low. An automatic calendar that means you don’t need to keep adjusting the date display each month. A 1/100 second stopwatch, 12/24 hour format, daily alarms, and EL backlight are all useful too.

Type Of Crystal

On the front of the timepiece is a mineral crystal lens that offers you a good level of scratch and shatter resistance. Mineral crystal is often chosen for G-Shock watches due to the shatter resistance that you can’t get on more expensive sapphire crystal glass.

Watch Movement

Powering the G-Shock Casio G-100 is a reliable and accurate quartz movement. These are often affordable and require very little upkeep, making them a very popular choice. The quartz movement in this watch is Japanese made. Some of Casio’s more expensive watches feature Tough Solar movements.


The strap of the Casio G100-1BV is made of a nice thick rubber with a width of 16mm for a comfortable fit. It fastens with a single tange buckle with a stainless steel clasp as seen in the picture below.

G100-1BV caseback

Water Resistance Rating

This watch has a 200m water resistance rating. A 200m or 20 bar rating makes this watch suitable for professional marine activity, serious surface water sports and skin diving.

Watch Specifications

  • Model Number: G100-1BV
  • Crystal Material: Mineral crystal
  • Case Diameter: 48mm
  • Case Thickness: 16mm
  • Movement: Japanese Quartz
  • Water Resistance: 200m / 20 bar
  • Strap Material: Rubber

Watch Advantages

  1. Quality durable shock resistant construction
  2. Magnetic resistance
  3. Popular oversized design
  4. 200m water resistance rating
  5. LED illumination
  6. Value for money

Watch Disadvantages 

  1. Due to the oversized design of this watch, the timepiece may not be suitable for people with smaller wrists
  2. The backlight feature would be better if it lit up the whole dial


My Final Thoughts On This Casio G-Shock G100 Review:

All in all I’d say the Casio G100 series offers excellent value for money. It’s a well built rugged watch with some useful functions and an impressive 200m water resistance rating which is nice to see on a watch in this price range.

After looking into the watch design, quality, features, and pricing this watch received an 8.5/10 from us at The Watch Blog.

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Where to buy the Casio G100

I like to stick to listing retailers that I’ve actually had experience buying from in the past. Below I’ve listed some of the top places to buy this watch from, check all for the best price. Variations of this watch include: GW 9400

Buy at Amazon

Buy at Watch Shop

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