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Casio Edifice EFV-C120D-1A4EF Bracelet Watch - W17601
Ref. EFV-C120D-1A4EF
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Stepping up in the same dial colour
The EFV-C120 is a direct successor to the EFV-C110, trimmed down in the case while carrying forward the full suite of analogue-digital functions that made its predecessor useful. The headline change is the battery: a CR2025 cell rated for approximately ten years, which means this is genuinely a watch you put on and forget about. At 45.5mm across and 141g on a steel bracelet, it sits firmly on the wrist and reads as a working tool rather than a dress piece — the black dial with its dual-mode display suits that register well. The analogue hands move in 20-second steps rather than sweeping, which is a deliberate power-saving choice and becomes noticeable in the first few days. Thirty cities across 29 world-time zones, a telememo that holds up to 30 contacts, three daily alarms and a 1/100-second stopwatch are all accessible without the watch ever asking you to change a battery.
- Reference
- EFV-C120D-1A4EF
- Brand
- Casio
- Collection
- Edifice
- Case size
- 45.5mm
- Case material
- Stainless steel
- Dial
- Black
- Crystal
- Mineral
- Movement
- Quartz
- Functions
- Date, Stopwatch, Countdown timer, Alarm, World time, Perpetual calendar, Dual display
- Water resistance
- 100m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Three-fold clasp
- Retailer
- F.Hinds
Additional specifications
- Weight
- 141g
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 5 collections
This watch appears in the Casio Edifice range (21), Back in Stock (4,683), Stainless Steel Watches (3,109), Watches 44mm and Over (827) and Watches Under £100 (589).
Manufacturer’s guarantee
What the specifications mean
Strengths
- 100m water resistance covers swimming and watersports
- Second time zone for travelling
- Sits in the lower half of Casio's range as we list it
Worth knowing
- 45.5mm is a large watch with real presence
Casio Edifice EFV-C120D-1A4EF Bracelet alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | EFV-C120D-1A4EF | RW647AX9 | 1914 |
|---|---|---|---|
| Price | £100 | £99 | £100 |
| Case size | 45.5mm | 46mm | 45mm |
| Water resistance | 100m | 100m | 50m |
| Movement | Quartz | Quartz | Quartz |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| This watch | Closely matched |
|
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.
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?
Yes. It is quartz, so expect a battery change every two to three years at a jeweller.
Quartz, automatic and solar comparedIs 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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