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Casio Edifice EFB-730D-3AVUEF Chronograph Bracelet Watch - W17600
Ref. EFB-730D-3AVUEF
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Stepping up in the same dial colour
The Edifice line has always drawn from motorsport, and the EFB-730D sits squarely in that tradition — the 3-6-9 sub-dial arrangement and bold index bars are a direct reference to the dashboard chronographs fitted to racing cars of an earlier era. The blue dial gives the layout some depth, so what could read as busy on a white or silver face instead holds together cleanly. At 40mm and 11mm thick, it wears closer to a dress watch than most sport chronographs manage, and 136g on a solid bracelet is substantial enough to feel purposeful without pulling at the wrist. The screw-lock caseback and one-touch triple-fold clasp suggest something put together with daily wear in mind rather than occasional use.
- Reference
- EFB-730D-3AVUEF
- Brand
- Casio
- Collection
- Edifice
- Case size
- 40mm
- Case material
- Stainless steel
- Dial
- Blue
- Crystal
- Sapphire
- Movement
- Quartz
- Functions
- Chronograph, Date
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Three-fold clasp
- Retailer
- F.Hinds
Additional specifications
- Weight
- 136g
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.
This watch appears in Stainless Steel (2,298), Chronographs (985) and Blue Dials (615).
Manufacturer’s guarantee
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Yes. At 100m it is rated for swimming and snorkelling, though not for diving.
Will the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Does it need a battery?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Is it a men's or women's watch?
Listed as men's, though at 40mm it sits in the range that suits anyone.
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.
Who are F.Hinds?
F.Hinds has been run by the same family since 1856 and is now in its fifth generation, with more than 115 shops across England and Wales. They are a member of the Responsible Jewellery Council and an Authorised Diamond Dealer.
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