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Casio Vintage 39mm Unisex Watch Green
Ref. AQ-230GA-3AMQYES
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Stepping up in the same dial colour
The AQ-230 carries forward the ana-digi layout Casio established in the 1980s — analogue hands reading the time above a small digital window showing the date, stopwatch or alarm — a format that looked futuristic then and reads as considered nostalgia now. This particular reference pairs that arrangement with a deep green sunray dial against an all-gold-tone case and bracelet, a combination that sits closer to costume jewellery than to tool watch, deliberately so. At 29.8mm and 47g it disappears on the wrist in the best sense: the rectangular case sits flat, the bracelet drapes rather than sits, and nothing announces itself. The sliding clasp adjusts across the full length of the bracelet without removing links, which on a watch this light is exactly the right solution — precise fit matters when the whole thing weighs next to nothing. There is no backlight, so evening readability depends on whatever ambient light is available, worth knowing before buying.
- Reference
- AQ-230GA-3AMQYES
- Brand
- Casio
- Collection
- Vintage
- Case size
- 39mm
- Case thickness
- 8.1mm
- Lug width
- 20mm
- Case material
- Gold PVD
- Case shape
- Rectangular
- Dial
- Green
- Crystal
- Acrylic
- Movement
- Quartz
- Functions
- Chronograph
- Water resistance
- 30m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Gold
- Clasp
- Folding clasp
- Lume
- Luminous
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 38.8mm
- 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 Vintage range (61), Back in Stock (4,868), Chronograph Watches (1,199), Gold Watches (688), Watches Under £100 (661), Rectangular & Square Watches (474) and Green Dial Watches (445).
Temporarily out of stock
Goldsmiths is not currently taking orders for this reference. Last listed as available on 13 November 2026. Stock is checked nightly and this page updates when it returns.
What the specifications mean
Strengths
- 39mm suits most wrists
- 8.1mm is unusually slim for a 39mm case
- 38.8mm lug-to-lug keeps the 39mm case wearable
- Luminous hands and markers for low light
- Sits in the lower half of Casio's range as we list it
Worth knowing
- 30m means keeping it away from water
- Acrylic crystal marks easily, though it polishes out
Also seen with this model (3)
Other versions of this model, not necessarily this exact watch.
Casio Vintage alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | AQ-230GA-3AMQYES | 30183 | TW2R41400 |
|---|---|---|---|
| Price | £65 | £60 | £65 |
| Case size | 39mm | 39mm | 38mm |
| Water resistance | 30m | 30m | 30m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Leather strap | Fabric strap |
| This watch | Closely matched | Closely matched |
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
No. At 30m it will survive rain and handwashing, but not submersion of any kind.
Water resistance explainedWill the glass scratch?
Yes, but it polishes out. Acrylic marks easily and a scratch can be buffed away at home, which is why vintage-style watches still use it.
Sapphire, mineral and acrylic comparedDoes it need a battery?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedWhat size strap does it take?
20mm. 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 38.8mm, which suits wrists from roughly 15cm (6 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 unisex, and at this size it suits any wrist that takes the dimensions.
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