Casio Edifice EFS-S540 — Solar Powered and Analog Stopwatch

Rating: 5 out of 5.
Size★★★
Weight★★★★★
Functions★★★
Materials★★★★
Battery Years★★★★★
Price★★★
How did we compose this rating? Enjoy our calculations →

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Official EFS-S540 Series Description. Premium model from the Edifice line with sapphire crystal and carbon on the dial. A layer of carbon fiber [which is used in racing car tuning] recalls the car’s focus on the brand, and sapphire crystal almost does not glare in the sun and does not scratch. Of the functions there is only the most necessary – a solar battery, which is charged from daylight, a stopwatch with an accuracy of a split second and a date window. In this model, the Japanese introduced a new technology for recharging, reducing the area of ​​the photosensitive panel – now the watch needs even less light for stable charging. The cover with a screw lock not only protects the watch from moisture and small particles of dust, but also simplifies access to the module.


Quick Content Guide

  1. Japanese approaches to Beautiful and Functional Watches in EFS-S540! *the most distinctive features in details
  2. General information about the watch *year of first release, model range etc.
  3. Edifice EFS-S540 Display Guide *for key functions only
  4. Feedback from Users *anonymous from different sources
  5. EFS-S540 Model Range *in different colors and bands
  6. The most distinctive specs *from our Editorial point of view
  7. Other Edifice EFS Watches *similar by price and functions but different by cases
  8. Official EFS-S540 Video *only from Casio Company
  9. Official EFS-S540 Specs *all details and for base version EFS-S540DB-1A
  10. EFS-S540 Comparison Table *with similar Edifice Watches

Enjoy Japanese approaches to Beautiful and Functional Watches!

Speed & Intelligence. Technologies continue to advance, with EDIFICE leading the way. This multi-function chronograph from CASIO is actively forwarding the evolution of electronic technologies. EDIFICE combines a fusion of dynamic forms with elaborate face designs, and provides leading-edge, accompanied by uniquely original expressions produced by the movements of various hands. These features are transporting the chronograph into new realms, and unlocking the hidden possibilities they contain. EDIFICE, the watch that recognises the value of speed and time, for people who live in the moment!

EDIFICE Design. Bold, fascinating forms and fine details, combined with simple styling that brings out the essence of metal, give birth to products with clearly designed identities.

Drawing and modeling. A prototype is produced based on a sketch using CAD and a 3D printer. A bold design concept takes shape.

Bold index. An edgy, striking large index is laid out on the dial. Robust modeling with straight lines and basic tones evokes a strong presence.

Forged stainless-steel case. After forging and heat treatment of the stainless-steel material, precision machining is conducted to complete the boldly designed case form.

Polished finishing. Polish finishing by the hands of skilled craftsmen produces beautiful mirror surfaces on the forge-cast stainless-steel case.

Tough Solar. This original solar power system transforms even weak light from sources such as fluorescent lamps into ample energy to provide stable operation of various high-load functions.

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General Information

Price220$  *average Amazon Price, we may earn commission from purchases
Year of First Release2018
Model RangeSAPPHIRE CRYSTAL
Battery Type Solar powered (Edifice Batteries)
Manual5585 (official)

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Edifice EFS-S540 Display Guide *for key functions only. For you to know how it works))

Crown Operations

Some water-resistant models (10BAR, 20BAR) have a screw-in crown. When you need to perform a crown operation, rotate it towards you to unscrew it. Then pull the crown out. Avoid applying undue force when pulling.

Stopwatch

The stopwatch measures elapsed time in 1-second increments up to 29 minutes, 59 seconds.
Important!
– Do not operate the stopwatch with the crown pulled out.

Using the Stopwatch

  1. Pull the Crown out to click 2.
  2. Use (A) (clockwise) and (B) (counterclockwise) to move the Stopwatch Second Hand and Stopwatch Minute Hand to 12 o’clock.
  3. After all of the hands are the way you want, push the Crown back in.

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Feedback from Users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.

PROs
+ great looking watch, easy to set up
+ great price
+ love the fact its solar powered
+ very comfortable indeed
+ very practical in use
+ resistant to shocks and scratches

CONs
– haven’t found yet

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EFS-S540 Model Range *may be updated

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The most distinctive specs of EFS-S540 — Solar Powered and Analog Stopwatch
*Editorial
— 100-meter water resistance
(good for swimming but not for deep diving)
— Carbon dial (attractive carbon gives the watch a cool, stylish look)
— Sapphire crystal (no scratches, no flares)
— Stopwatch (Measuring capacity: 29’59; Measuring modes: Elapsed time, split time, 1st-2nd place times)

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Official EFS-S540 Video

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Other Edifice EFS Watches *similar by price and functions but different by cases

These are not all Edifice EFS Series. Here is a list of All Edifice EFS Watches →


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Edifice  EFS-S540  on the wrist!

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Official EFS-S540 Specs / Features *for base version EFS-S540DB-1A

  • Solar Power
    A solar cell provides power for operation.
  • Neo-display
    A luminous coating provides long-term illumination in the dark after only a short exposure to light.
  • Date display
    The current date is shown on the display
  • Stopwatch function – 1/1 sec. – 30 minutes
    Elapsed times are measured with split-second accuracy. The watch can measure times of up to 30 minutes.
  • Carbon dial
  • Sapphire crystal
    Artificially manufactured glass with the hightest hardness and scratch resistance
  • Solid stainless steel case
  • Bezel with IP Finish
    The bezel of the watch is elaborately coated according to the so-called “ion plating” process and offers the advantage of increased scratch resistance
  • Screw locked back
    The screw connection on the base of the housing optimally protects the inner workings of the watch and simultaneously provides easy access, when changing the battery for example.
  • Stainless steel band
    Tough, durable and elegant: The stainless steel wrist strap gives your watch that classic feel.
  • Safety Catch
    Always reliable: This watch has a particularly secure safety catch, which helps prevent the strap from opening by mistake.
  • Battery level indicator
    An indicator shows the current battery level.
  • Water resistance classification (10 bar)
    Perfect for swimming and snorkelling: the watch is water resistant to 10 bar according to ISO 22810.
  • Dimensions (H x W x D)
    51,5mm x 47,6mm x 12,0mm
  • Weight
    approx. 87,0 g

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EFS-S540 Comparison Table with similar Edifice Watches

EFS-S540

Price (Amazon)

Year of first Release

2019

2019

2018

Accuracy

±20 seconds per month

±20 seconds per month

±20 seconds per month

SmartWatch Features

No

No

No

Countdown timer

No

No

No

Dual time (World Time)

No

No

No

Light

No

No

No

Case / bezel material

Stainless steel

Stainless steel

Stainless steel

Glass

Sapphire Glass with non-reflective coating

Sapphire Glass with non-reflective coating

Sapphire Glass with non-reflective coating

Battery

Solar powered TS920E

5 years on SR927SW

Solar powered TS920E

Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size

50×47×12

50.5×45.6×9.5

51.5x47.6x12

Full features (if you want to know more)

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Recent News about EFS-S540 

All Casio EFS-S540 News →


You ask, we answer…

What does 100-meter water resistance in EFS-S540 mean?

The watch is good for swimming but not for deep diving.

What is Carbon dial in EFS-S540?

Attractive carbon gives the watch a cool, stylish look.

What does Stopwatch in EFS-S540 do?

Measuring capacity: 29’59; Measuring modes: Elapsed time, split time, 1st-2nd place times.


Not sure about EFS-S540? There are more Edifices!

Back to All Edifice Models →

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