Mens Casio G-Shock Alarm Chronograph Watch GA-100-1A4ER


Robust, chunky, solid and superb are all the common words describing this watch. Introduced in 2010, customers showed immense interest in buying this from various retailers including the online vendors. Although, there are many sites selling the timepiece, we selected three sites for our review.

Ebay UK
On average there were 14 listings of the exact model on the UK eBay site while the US site had only 10 listings. The best price listed is £66.25 in the buy now format with free postage. However, while checking the past completed listings, we found the watch was sold in the bidding format for as low as £41.00. The highest selling price was £73.95.

It is, perhaps, the biggest seller of this model. Although, we do not know how many did they sell in the past two years, there were 91 customer reviews. The site listed the RRP £100.00 with a 25% online discount (£75.00) and free Royal Mail Special Next Day delivery. Among the 91 reviews, 82 rated it as excellent, 7 rated it very good, 1 average and 1 fair. No customer rated it poor.

Amazon UK

They listed the RRP £85.00 but offered it for sale for £69.95 with an 18% discount (you save £15.05) with free Super Saver Delivery. Deliver usually takes 2 days.
33 customers rated it and the average score was 4.3 out of 5 starts. 21 people rated it 5 stars, 7 rated it 4 star, 3 rated it 2 stars, 1 rated it 2 star while 2 rated it 1 star. The low rated reviews were mainly related to issues of the vendor like customer service, late arrival, dead battery etc. We did not find any specific problem with the watch itself.


Summary of Reviews and Ratings

Site Name No of Reviews Excellent Very Good Good Fair
eBay None None None None None
Watchshop 91 82 7 1 1
Amazon 33 22 7 2 1


Main Features and Specifications


Case Width Case Depth Model Number Case Thickness Movement Water Resistance
51mm 16mm GA-100-1A4er 16.90mm Japanese Quartz 200 M

Other Retailers
[pcu id=17]

This series has alll the features and functionality of the latest G-shock range with the exception that it
is now found quite cheaper in the market especially some online websites and auction places. This page show cases
a number of them from various vendors from around the web. These prices have been known to be the cheapest ever and anywhere.

Auto Led Light:
It illimuinates the watch face to see the watch working in the dark.

Shock Reistant
It protects it against shocks, impacts and vibration.

Magnetic Resistant:

It shields the watch from the effect of any magentic field.

World Time: As usall with G-shock, this feature diplays the time of the major cities around the world.

Chronograph or Stop Watch Function

The count down timer hels a lot to manage several acitivites during the 24 hour period.

5 Daily Alarms

The model has 5 independent alarms which can be used as a great tool or reminder for recurring activities.

12 Hour and 24 hour format

Mineral Glass

The glass is scratch resistant and is tough against damages.

Water Resistance

200 meter water resistance which is good for swimming and diving without scuba gear.

approx. 55,00mm x 51,20mm x 16,90mm (H x W x D)

Weight approx. 70,00 g

Customer Reviews Rating

We used Amazon UK to base our research on reviewing this product. Exactly this model received 33 reviews from previous customers. Here is the break down of the rating:

5 stars 21
4 stars 7
3 stars 2
2 stars 1
1 stars 2
Total Reviews 33
Average Rating 4.3/5

PROs by Customers
More dials
Wide and Comfortable Strap
Solid and Great Looking
Rich in Features
Robust and Lovely

Cons by Customers
Fogs up
Lime Scales Gathers on the strap
Pathetic Lights

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