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Casio G-Steel GST-B1000 Series 47mm Mens Watch Green
Ref. GST-B1000D-3AER
Sits in Casio’s upper tier here — more premium than three quarters of the Casio watches we list, which start at £25.
Price range £25 to £919 across 135 Casio watches in stock.A 44.2 mm wide, 11.6 mm thick case combines stainless steel with carbon-reinforced resin in a Carbon Core Guard construction. The forest green dial carries a brick-pattern texture drawn from the original DW-5000C, with analogue hour, minute, and second hands finished with Neobrite luminous coating and red, blue, and yellow accents. Two sub-dials sit alongside a date window and day indicator. The solid stainless steel bracelet fastens with a one-touch three-fold deployment clasp. Solar charging works from any light source, with Bluetooth syncing to a smartphone for automatic time adjustment. Water resistance stands at 200 metres.
- Reference
- GST-B1000D-3AER
- Brand
- Casio
- Collection
- G-Shock
- Case size
- 47mm
- Case thickness
- 11.6mm
- Case material
- Resin
- Case shape
- Round
- Dial
- Green
- Crystal
- Mineral
- Movement
- Solar
- Functions
- Date
- Water resistance
- 200m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Deployant clasp
- Lume
- Luminous
- Retailer
- F.Hinds
Additional specifications
- Weight
- 118g
Learn more about Casio
Tadao Kashio founded Kashio Seisakujo in Tokyo in 1946 as a machine shop. The company's first success was a finger ring that held a cigarette, and its second was the 14-A of 1957 — the world's first all-electric compact calculator, which used solenoids rather than gears.
Casio entered watchmaking in 1974 with the Casiotron, a digital watch with an automatic calendar that knew the varying lengths of months. The company approached watches as an electronics manufacturer rather than a horological one, and that difference produced the G-Shock.
The G-Shock came from a single engineer, Kikuo Ibe, who broke a watch his father had given him and set out to build one that could not break. The specification was three tens: survive a ten-metre drop, ten bars of water pressure, and ten years of battery life. It took over two hundred prototypes, and the solution was suspending the module inside the case on a cushioned internal structure rather than mounting it rigidly. The DW-5000C shipped in 1983.
It became one of the most durable product designs in any category, adopted by militaries, emergency services, and skateboarders alike, and Casio has since added solar charging, radio and GPS timekeeping, Bluetooth, and full-metal and carbon variants.
Casio also produces the Edifice, Pro Trek, and Oceanus lines, and remains an independent Japanese public company.
- 1946
- Tadao Kashio founds the company in Tokyo.
- 1974
- The Casiotron is Casio's first digital watch.
- 1983
- The G-Shock DW-5000C survives Kikuo Ibe's three-tens brief.
- 1994
- The Frogman extends G-Shock to ISO dive certification.
Also in 7 collections
This watch appears in the Casio G-Shock range (85), Back in Stock (2,812), Watches 44mm and Over (711), Sports Watches (698), Dive Watches (491), Green Dial Watches (378) and Watch Price Drops (257).
Manufacturer’s guarantee
Best of 2 retailers
What the specifications mean
A watch built to be worn hard and got wet.
Strengths
- 200m water resistance, rated for actual diving
- Luminous hands and markers for low light
- One of Casio's more premium watches
Worth knowing
- 47mm is a large watch with real presence
Price history
This watch is currently at its lowest recorded price. It reached £379 on 10 August. Prices are checked every day, and we record any changes.
Casio G-Steel GST-B1000 Series alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | GST-B1000D-3AER | 010-02934-00 | AT2587-02E |
|---|---|---|---|
| Price | £299 | £299 | £299 |
| Case size | 47mm | 45mm | 44.8mm |
| Water resistance | 200m | 100m | 100m |
| Movement | Solar | Solar | Solar |
| Strap | Stainless steel bracelet | Silicone strap | Silicone strap |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 200m it is rated for swimming, snorkelling and recreational diving.
Water resistance explainedWill the glass scratch?
It can, over time. Mineral glass handles daily wear but will pick up fine scratches that sapphire would not.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It charges from light, and the cell behind that is designed to last a decade or more.
Quartz, automatic and solar comparedIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
F.Hinds at £299, against £379 at Goldsmiths. Two UK retailers stock this reference.
Has the price changed recently?
It's currently at its lowest recorded price since we began tracking it. It's ranged between £299 and £379, today it's £299.
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