CASIO EDIFICE EFV-620D-1A4VUDF STANDARD CHRONOGRAPH MEN WATCH
EFV-620D-1A4VUDF
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The EDIFICE EFV-620D-1A4VUDF is a proper chronograph, not a multi-dial watch dressed as one. The three inset dials are stopwatch counters — 1/10 seconds, minutes and seconds — measuring to a tenth of a second across 59 minutes 59.9 seconds, with elapsed, split and 1st-2nd place timing. EDIFICE takes its cues from motorsport, and this is the part of the watch where that shows.
It is deliberately oversized: 55 × 50.5mm and 154 grams of stainless steel, kept to 11.8mm thick so the proportions stay flat rather than tall. The case back is a screw lock back, it is rated to 100 metres of water resistance, and it runs roughly three years on a battery.
At a Glance
- BrandCasio EDIFICE
- SeriesEDIFICE Standard Chronograph
- ModelEFV-620D-1A4VUDF
- Module5579
- Case Size55 × 50.5 × 11.8 mm
- Weight154g
- Case MaterialStainless Steel
- DisplayAnalog Chronograph, 3 Hands + Date
- Case BackScrew Lock Back
- BandStainless Steel, One-Touch 3-Fold
- Water Resistance100m (10 BAR)
- Battery LifeApprox. 3 Years
Technical Specifications
The Casio EDIFICE EFV-620D-1A4VUDF is an analog chronograph on module 5579 from the EDIFICE Standard Chronograph line, in a stainless steel case measuring 55 × 50.5 × 11.8mm and weighing 154 grams, on a stainless steel bracelet with a one-touch three-fold clasp. Three inset dials serve the stopwatch, counting 1/10 seconds, minutes and seconds to a capacity of 59'59.9" with elapsed, split and 1st-2nd place timing. The glass is mineral, the case back is a screw lock back, and the watch is rated to 100 metres of water resistance. Accuracy is ±20 seconds per month and battery life is approximately three years on an SR920SW cell.
| Model Number | EFV-620D-1A4VUDF |
| Case & Bezel Material | Stainless Steel |
| Case Back | Screw Lock Back |
| Case Size (L × W × H) | 55 × 50.5 × 11.8 mm |
| Weight | 154g |
| Glass | Mineral |
| Water Resistance | 100 Metres (10 BAR) |
| Display Type | Analog Chronograph |
| Hands | 3 Hands (Hour, Minute, Second) |
| Inset Dials | 3 Dials — Stopwatch 1/10 Seconds, Minutes, Seconds |
| Stopwatch Resolution | 1/10 Second |
| Stopwatch Capacity | 59'59.9" |
| Stopwatch Modes | Elapsed Time, Split Time, 1st-2nd Place Times |
| Date Display | Yes |
| Band Material | Stainless Steel |
| Clasp | One-Touch 3-Fold Clasp |
| Movement | Analog, Battery-Powered |
| Accuracy | ±20 Seconds Per Month |
| Battery | SR920SW |
| Battery Life | Approx. 3 Years |
Frequently Asked Questions
What do the three sub-dials do?
All three belong to the stopwatch: one counts tenths of a second, one counts minutes and one counts seconds. That is what makes this a chronograph rather than a multi-dial watch — the sub-dials are a timing instrument, not a day and date display. It measures up to 59 minutes 59.9 seconds, with elapsed time, split time and 1st-2nd place timing for recording two finishing times.
What is a screw lock back?
The case back screws onto the case rather than pressing into it, which tightens the seal against water and dust. It is worth being clear about what it is not: this is a screw lock case back, not a screw-down crown. The crown pulls out and pushes in as normal, so there is nothing to unscrew before setting the time.
Is 55mm and 154 grams too much watch?
It is the largest and heaviest watch in the EDIFICE standard range — 55 × 50.5mm across, and 154 grams. Casio designed it oversized on purpose. At 11.8mm it is not especially tall for its width, so it sits flatter than the footprint suggests, but if you normally wear something around 40mm this will feel substantially different. Worth trying on.
Can I swim with it?
Yes. 100-metre (10 BAR) water resistance covers swimming, snorkelling and showering. It is not a diving watch — the rating is a laboratory pressure measurement, not a depth you should swim to, so avoid scuba diving, do not use the chronograph buttons while the watch is wet, and do not pull out the crown with water on the case.
Will the bracelet fit my wrist, and can it be adjusted?
Casio does not publish a compatible band size for this model, so we cannot quote a range. The bracelet is sized by removing links, which can be done in store at City Chain. It closes on a one-touch three-fold clasp, so it opens and fastens without threading a buckle.
How long does the battery last, and can I get it replaced?
Approximately three years on an SR920SW cell, keeping time to within ±20 seconds per month. When the battery runs down, bring the watch to any City Chain outlet — having it changed by a service centre keeps the screw lock back correctly reseated, which protects the 100-metre rating.
What warranty does this watch come with?
The EFV-620D-1A4VUDF comes with Casio's official 1-year warranty when purchased from City Chain Singapore, an authorised Casio retailer.
Why Buy from City Chain Singapore
- Authorised Retailer Official Casio warranty
- 100% Authentic Genuine Casio product
- Strap Adjustment Size it in-store
- Free Shipping All orders within Singapore
Case / bezel material: Stainless steel
One-touch 3-fold Clasp
Stainless Steel Band
Mineral Glass
Screw Lock Back
100-meter water resistance
1/10-second stopwatch
Measuring capacity: 59'59.9''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Date display
Regular timekeeping
Analog: 3 hands (hour, minute, second),
3 dials (stopwatch 1/10 seconds, stopwatch minutes, stopwatch seconds)
Accuracy: ±20 seconds per month
Approx. battery life: 3 years on SR920SW
Size of Case: 55×50.5×11.8mm
Total Weight: 154g
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
