Casio G-Shock Men's Digital Resin Strap Watch G-7900-1ER

4.8 out of 5 stars 397 customer reviews
| 13 answered questions

RRP: £95.00
Price: £53.34 & FREE Delivery in the UK. Details
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  • Includes alarm, stop watch and back light
  • Protective scratch-resistant hard mineral crystal lens
  • Round high-performance and durable resin case with digital display
  • Durable and strong resin 27mm wide bracelet with buckle
  • Water resistant to 200 metres
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£53.34 & FREE Delivery in the UK. Details In stock. Dispatched from and sold by Amazon. Gift-wrap available.

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Colour Name: Red

Product Specifications

Watch Information
Brand Name G-Shock
Model number G-7900A-4ER
Part Number G-7900A-4ER
Model Year 2014
Item Shape round
Dial Window Material Type Mineral
Display Type digital
Clasp Type Buckle
Metal Stamp --
Case Material Resin
Case Diameter 50 millimetres
Case Thickness 18 millimetres
Band Material Resin
Band Length Mens Standard
Band Width 27 millimetres
Band Colour red
Dial Colour Black
Calendar day-date-month
Special Features alarm^stop watch^back light
Weight 68 Grams
Movement Quartz
Water Pressure Resistance 20 bar
Warranty Type Amazon 2 Year Warranty
Warranty Description 2 years

Product details

Colour Name: Red
  • Product Dimensions: 13 x 13 x 13 cm ; 68 g
  • Boxed-product Weight: 218 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
    Find out more about our Delivery Rates and Returns Policy
  • Batteries 1 Lithium Metal batteries required. (included)
  • Item model number: G-7900A-4ER
  • ASIN: B002LAS0QI
  • Date first available at Amazon.co.uk: 1 Jan. 2007
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (397 customer reviews)
  • Amazon Bestsellers Rank: 786 in Watches (See Top 100 in Watches)
  • Click here for information about recycling electrical and electronic products

Product Description

Product Description

Casio G-Shock watch features a flash alert, world time, and 1/100 sec stopwatch. This black colour watch for men also features a 2 countdown timers, 5 multi-function alarms and is also water resistant to 200m. Size: 52.40mm x 50.00mm x 17.70mm. Auto Illuminator, Shock Resistant, Low-temperature Resistant (-20 C), Moon Data Display, Tide Graph, World Time, 2 Stopwatch, Yacht Timer, Timer, 5 Multi Alarms, Auto Calendar, Snooze, Mineral Glass, Water Resistant (200m/20 Bar), 2 Years - 1 Battery.

Manufacturer's Description

About Casio

Casio is one of the UK’s top five watch brands, with over one million watches purchased every year. Amongst it's portfolio are classic "toughness" brands G-Shock and Baby-G, motor-sport inspired chronograph range Edifice and the fashionista favourite retro collection of digital watches.

With recent advances in Bluetooth and Wave Ceptor technology, Casio continually pushes the boundaries of innovative timepiece design and functionality.

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From the Manufacturer


Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Colour Name: Red Verified Purchase
I was looking for a rugged, strong, waterproof watch that was capable of withstanding the worse of weather conditions. I work in search and rescue and needed a watch I could rely on. This does not disappoint, you can see the high build quality of this watch with the size of the screws and the large buttons. The buttons make it easy to use when I've got gloves on. The display is very clear and the light is superb, a must in my job. I previously bought a Timex watch but returned it because the light was very poor. I'm not interested in the tide/moon indicators so cant advise you on those features. I usually wear all dark clothing so a nice bright red watch really sticks out and people notice it. I have previously owned white/blue watches and after a few weeks of wearing them they became stained with the dirt and muck that collected but this isnt the case with this watch. My previous Casio G shock lasted ten years and gave me no trouble until it packed up, I'll be more than happy if this one lasts just as long.
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Colour Name: Black Verified Purchase
I had a good look round for a watch that would suit me and what I do. I'm a boxing coach at a very busy club. I bought the Casio G-7900-1ER for its practicality. I use it for everyday use and when I'm training, it is great for my role as a coach, having the two stopwatche's on board. Also the timer mode which you can set for a period of training is also very clever. The watch in general is smart in appearance, very easy to use, but what is key with this watch is does what is says on the tin with no fuss.
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Colour Name: Red Verified Purchase
Update:
I've owned this rescue red model for about 4 years now and it's still running strong. I still wear it around the clock, I wear it every time I go swimming (twice weekly on average). It's been up Mount Fuji, survived festivals and rock gigs......It has been a joy to own.

The two reasons I bought this watch is because of the colour. The red is really bright, its scarlet red, (i was worried that some of the pictures/videos i'd seen made the watch look reddy-orange. But it is definately red.)

The second reason was the display. My old G shock was an analogue/digital, and the minute hand would sometimes cover the digital display.

The display on this model is really clear, and the backlight makes it very easy to read with the blue glow.

I'm afraid, being abit older, I don't have much use for the moon and tide functions. If I bought this when I was a kid i'm sure I could tell you alot more about them.

A few things to note: The watch is quite chunky, a few mm's thicker than my old G Shock, and that wasn't exactly slim to begin with, but I did get used to the size after a few days.
No one should deny buying this based on the point I just made unless its a really big issue for you personally. You get used to the size, and the watch is not heavy or uncomfortable.

Also the strap has been stained a little as my workplace isnt the cleanest of environments, but its not too visable compared to a white watch I once owned.

All in all, i'm very happy with this watch, the features I do use work perfectly, its stylish, and being a G Shock, its practically indestructable.
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Colour Name: White Verified Purchase
At the risk of repeating what the other reviewers have already said, the watch really is nice. I have three other Casio G-Shock watches and this one is a little bigger/thicker than those, not that that's a bad thing - If you like chunky watches, then you'll like this!

I don't love the colour, but as that's just down to personal taste, I have still given it five stars.

When setting the time correctly (to ensure that the World clock displays the correct times too), I had to use the instruction manual, which is not normally the case. The manual is quite thick and not laid out particularly well, which can make it a little confusing, but with a small amount of perseverance you can get it set pretty quickly.

I'd certainly recommend this watch, especially at the current price (£66).
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Colour Name: Black Verified Purchase
I am quite a slim 16 yr old but as soon as i got this in the 3 day delivery, everyone was complimentin me on this. Many cool features 2, fits my 6 inch wrist perfectly.
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Colour Name: Black Verified Purchase
I bought this for sailing and have always wanted a g-shock. I went for the battery version due to poor experience of solar models in low light conditions. As this watch has the yacht timer function it is excellent for race starts with a sound signal so you can keep your eyes out side the boat. What is also useful is the current time is displayed in countdown mode so you know when you are about to get the signal for the beginning of the starting sequence. As a regular traveler world time is also useful.
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Colour Name: Red Verified Purchase
I recently bought this fantastic watch, and being a long time G-Shock fan I wasn't expecting anything less than what I got.
First of all, this is supposed to be a "rescue" watch, so it's really (really) BRIGHT RED. Has a lot of functions (and a little bit difficult to set), like moon/tide, world time, 4 alarms, timer, 2 stopwatches, it's backlit. The main screen shows the time (obviously ;)), date, the moon phase on the left, the two stopwatches on the right and the tide just below the day.
This is the perfect watch for you if you're like me and don't pay too much attention to it through the day, as it's tough and you can't scratch it in a million years. I have a few watches for special occasions, but this I wear everyday, work, travel, business, everything, looks good, stands out from the "all grey/black" crowd of watches, it's nearly indestructible, what else do you need?? Oh, right, it's 20 bar water resistant (that's 200m!), enough for you??

P.s. The big difference between the two 7900 models is the "tough solar" system, meaning that this one has a lithium battery instead of being solar powered, but for me it's not a problem, I have G-Shocks from 7 years ago still running on the same battery...!
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