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Casio G-SHOCK GAC-2500-9AER Yellow Resin Strap Watch - W17622
Ref. GAC-2500-9AER
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Stepping up in Casio's range
The GAC-2500 is built as a full-analogue reading of the DW-5000C, the original 1983 G-SHOCK that started everything — same octagonal case geometry, same underlying toughness mandate, but stripped of all digital display. It is the first analogue module designed for the core G-SHOCK range, arriving as module 5757, and that matters: the entire layout, from the two-subdial arrangement to the date wheel tinted to match the dial, exists to put time-reading first and nothing else second. At 47 grams on the wrist, the bio-based resin construction reads as serious rather than merely light. The minute hand is not fixed directly to its shaft but held by magnetic force, so an impact that would bend or strip a conventional hand instead lets it deflect and return — a structural decision that reflects how G-SHOCK engineers think about durability at the component level, not just the case. The monochromatic yellow, carried uniformly across dial, strap and case, makes the watch unusually coherent for something in this family, and the Neobrite coating paired with the amber afterglow backlight means it stays readable well past sunset.
- Reference
- GAC-2500-9AER
- Brand
- Casio
- Collection
- G-Shock
- Case size
- 44.5mm
- Case thickness
- 12.7mm
- Case material
- Resin
- Case shape
- Octagonal
- Dial
- Yellow
- Crystal
- Mineral
- Movement
- Automatic
- Calibre
- 5757
- Functions
- Date, Small seconds
- Water resistance
- 200m
- Bracelet / strap
- Rubber strap
- Strap colour
- Yellow
- Clasp
- Buckle
- Lume
- Luminous
- Retailer
- F.Hinds
Additional specifications
- Lug-to-lug
- 46.7mm
- Weight
- 47g
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), Automatic Watches (1,749), Sports Watches (800), Watches 44mm and Over (798), Dive Watches (572), Automatic Watches Under £500 (335) and Dive Watches Under £300 (94).
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 44.5mm case wearable
- Luminous hands and markers for low light
Worth knowing
- 44.5mm 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 GAC-2500-9AER Yellow Resin alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | GAC-2500-9AER | RL445BX9 | PEWJI21942421 |
|---|---|---|---|
| Price | £110 | £109 | £109 |
| Case size | 44.5mm | 43mm | 44mm |
| Water resistance | 200m | 100m | 30m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Rubber strap | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | — | 41 hours | — |
| 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 comparedWill 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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