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Casio Vintage AQ-240E-7AEF Bracelet Watch - W17562
Ref. AQ-240E-7AEF
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Stepping up in Casio's range
The AQ-240 picks up where the AQ-230 left off, keeping the same ana-digi layout that made that series a fixture of the 1980s but rounding the bezel edges and softening the case lines throughout. The result sits comfortably between the two eras it references — recognisably old Casio in its bones, but tidied into something that reads as deliberate rather than nostalgic. At 8.1mm and 51 grams, it disappears on the wrist in a way that very few steel-cased watches manage. The silver sunray dial shifts between flat and luminous depending on the angle, keeping the face interesting without demanding attention, and the digital window at six o'clock slots neatly into the layout rather than cluttering it. The clasp is worth noting: it adjusts without removing links, which sounds like a small thing until you are trying to accommodate a shirt cuff.
- Reference
- AQ-240E-7AEF
- Brand
- Casio
- Collection
- Vintage
- Case size
- 35.8mm
- Case thickness
- 8.1mm
- Case material
- Resin
- Case shape
- Rectangular
- Dial
- Silver
- Crystal
- Acrylic
- Movement
- Quartz
- Calibre
- 5154
- Functions
- Chronograph
- Water resistance
- Not water resistant
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Luminous
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 40.9mm
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 (55), Back in Stock (4,847), Watches Under 37mm (1,704), Chronograph Watches (1,234), Silver Dial Watches (718), Watches Under £100 (638) and Rectangular & Square Watches (460).
Manufacturer’s guarantee
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What the specifications mean
Strengths
- 35.8mm suits most wrists
- 40.9mm lug-to-lug keeps the 35.8mm case wearable
- Luminous hands and markers for low light
- Sits in the lower half of Casio's range as we list it
Worth knowing
- Acrylic crystal marks easily, though it polishes out
Casio Vintage AQ-240E-7AEF Bracelet alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification |  AQ-240E-7AEF | RY21862A | 24000145 |
|---|---|---|---|
| Price | £55 | £55 | £55 |
| Case size | 35.8mm | 35mm | 35mm |
| Water resistance | Not water resistant | 30m | 30m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Leather strap | Leather 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. This watch carries no water resistance rating — keep it dry, and take it off before washing your hands.
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 comparedWill it fit my wrist?
Lug-to-lug is 40.9mm, 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.
Cheapest place to buy
Both Goldsmiths and F.Hinds list it at £55, so choose on delivery and warranty rather than price.
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