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Casio G-SHOCK GMC-2500-1A8ER G-Steel Black Resin Strap Watch - W17618
Ref. GMC-2500-1A8ER
Sits in Casio’s upper tier here — more premium than three quarters of the Casio watches we list, which start at £20.
Price range £20 to £919 across 152 Casio watches in stock.The GMC-2500 traces its geometry back to the DW-5000C, the original 1983 G-Shock, but this is not a reissue — it is a new case built to ask what an all-analogue G-Shock looks like when you strip away every digital component and rethink the structure from the movement outward. The calibre 5757 is the first purely analogue module Casio has developed for the core G-Shock line, and its most significant engineering choice is the minute hand itself: rather than being fixed to the shaft, it is held by magnetic force, allowing it to absorb a sharp impact and drift momentarily before snapping back to position. The gear train underneath is never taking the blow directly. At 43.8mm across with a lug-to-lug of just 46.7mm and a profile of 12.9mm, it sits and wears nothing like the G-Shock most people picture. The octagonal stainless steel bezel gives it the silhouette that enthusiasts have already taken to calling the Metal CasioNaut — a companion to the CasiOak 2100 family in spirit, but cleaner and flatter on the wrist. The two-sub-dial layout keeps the silver brass dial uncluttered, with the small seconds carrying the Shock Resist mark and a date wheel colour-matched to avoid visual noise. The Neobrite coating handles the hands well enough in the dark, though the raised bar hour markers carry no lume of their own — the amber backlight with afterglow fills that gap. Quick-release spring bars make strap changes straightforward, and the bio-based resin strap reaches wrists from 145mm to 215mm without additional links or tools.
- Reference
- GMC-2500-1A8ER
- Brand
- Casio
- Collection
- G-Shock
- Case size
- 43.8mm
- Case thickness
- 12.9mm
- Lug width
- 22mm
- Case material
- Stainless steel
- Case shape
- Octagonal
- Dial
- Silver
- Crystal
- Mineral
- Movement
- Automatic
- Calibre
- 5757
- Functions
- Chronograph, Date, Small seconds
- Water resistance
- 200m
- Bracelet / strap
- Rubber strap
- Strap colour
- Black
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- F.Hinds
Additional specifications
- Lug-to-lug
- 46.7mm
- Weight
- 68g
- Strap
- Interchangeable
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 (91), Stainless Steel Watches (3,133), Automatic Watches (1,750), Chronograph Watches (1,199), Sports Watches (800), Silver Dial Watches (715) and Dive Watches (572).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch built to be worn hard and got wet.
Strengths
- 200m water resistance, rated for actual diving
- 46.7mm lug-to-lug keeps the 43.8mm case wearable
- Luminous hands and markers for low light
- One of Casio's more premium watches
Worth knowing
- 43.8mm sits at the larger end
Also seen with this model (12)
Other versions of this model, not necessarily this exact watch.
- Keanu Reeves · Casio G-Shock ref. DW-5600C-1V · Worn on screen · Speed · Source
- Chris Pratt · Casio G-Shock ref. GA-100-1A1 · Worn on screen · The Terminal List · Source
- Eminem · Casio G-Shock ref. GM-110G-1A9 · Spotted · Source
- Sean Penn · Casio G-Shock ref. DW-6900 · Worn on screen · One Battle After Another · Source
- Alan Ritchson · Casio G-Shock ref. GW-9500 · Worn on screen · War Machine · Source
- Central Cee · Casio G-Shock ref. DW-6900SP-1 · Spotted · Source
- John Mayer · Casio G-Shock · Owns · Hodinkee collaboration · Source
- Josh Hutcherson · Casio G-Shock ref. DW-5600 · Worn on screen · Five Nights at Freddy's · Source
- Russell Crowe · Casio G-Shock · Worn on screen · Land of Bad, MR-G · Source
- Spike Lee · Casio G-Shock ref. DW-6900SC-4D · Owns · Bright orange · Source
- 50 Cent · Casio G-Shock ref. G-7900 · Spotted · Source
- Anthony Ramos · Casio G-Shock ref. DW-5900 · Worn on screen · Transformers: Rise of the Beasts · Source
Casio G-SHOCK GMC-2500-1A8ER G-Steel Black alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | GMC-2500-1A8ER | RGB10009/74 | I13901 |
|---|---|---|---|
| Price | £230 | £230 | £220 |
| Case size | 43.8mm | 43mm | 43mm |
| Water resistance | 200m | 100m | 100m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Stainless steel bracelet | Leather 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 is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedWhat size strap does it take?
22mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Will it fit my wrist?
Lug-to-lug is 46.7mm, which suits wrists from roughly 16cm (6¼ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
F.Hinds is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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