Casio Edifice Solar Powered Chronograph Black Dial Stainless Steel Watch (EFS-S660D-1AVDF)
- Sale price
- R 4,649
- List price
- R 6,199
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The Casio Edifice EFS-S660D-1AVDF delivers sophisticated solar-powered performance in a bold 45.3mm round stainless steel case. Engineered for those who value precision and self-sufficiency, this chronograph features Casio's advanced solar charging system—eliminating the need for battery replacements while ensuring reliable timekeeping under all conditions. The textured black dial, protected by scratch-resistant sapphire crystal with anti-reflective coating, offers exceptional legibility with luminous hour markers, a tachymeter bezel, and a distinctive blue central chronograph hand.
Built for active lifestyles, this timepiece combines robust 100-metre water resistance with a fully integrated stainless steel bracelet and secure one-touch three-fold clasp. The chronograph complication provides stopwatch functionality accurate to 1/20th of a second, while the date window at 3 o'clock ensures everyday practicality. Weighing 129 grams and measuring just 11.6mm in thickness, this solar-powered watch strikes an ideal balance between substantial wrist presence and all-day comfort.
At Cassims & Co., we are proud authorised retailers of CASIO watches, ensuring every Edifice timepiece carries full international warranty protection and genuine Japanese engineering. Whether you're timing laps on the track or managing a demanding schedule, the EFS-S660D-1AVDF's solar autonomy and sapphire crystal durability make it a dependable companion. Our expert team at our Mall of the South boutique can demonstrate the solar charging capabilities in person, and should you ever require assistance, our watch servicing and repairs specialists are always available to keep your Edifice performing flawlessly.
From Johannesburg boardrooms to weekend adventures, this Casio Edifice chronograph embodies the marriage of sustainable technology and contemporary sports-luxury design—a timepiece that never asks to be recharged, only to be worn.
Specifications
- Brand: Casio
- Collection: Edifice
- Model: EFS-S660D-1AVDF
- Case Shape: Round
- Case Diameter: 45.3mm
- Case Thickness: 11.6mm
- Case Material: Stainless steel
- Dial Colour: Black with textured finish
- Crystal: Sapphire crystal with anti-reflective coating
- Movement: Solar powered quartz
- Functions: Chronograph (1/20 second stopwatch), Date display
- Water Resistance: 100 metres (10 ATM)
- Bracelet Material: Stainless steel
- Bracelet Width: 21.5mm
- Clasp Type: One-touch three-fold clasp
- Wrist Size: Fits 150mm to 205mm
- Weight: 129 grams
- Bezel: Tachymeter scale
FAQ
Q: How does the solar charging system work?
A: The EFS-S660D-1AVDF uses Casio's solar charging technology, converting both natural and artificial light into electrical energy to power the movement. Once fully charged, the watch can run for several months even in total darkness, eliminating the need for regular battery replacements.
Q: What timing functions does the chronograph provide?
A: The chronograph complication offers stopwatch functionality accurate to 1/20th of a second, ideal for precision timing of sporting events, intervals, or professional tasks. The blue central hand indicates chronograph seconds, with sub-dials displaying elapsed time.
Q: Can I wear this watch while swimming?
A: Yes, with 100-metre water resistance, this Edifice is suitable for swimming, snorkelling, and water sports. It is not designed for scuba diving or high-velocity water activities. Avoid operating the pushers or crown while underwater to maintain water resistance integrity.
Q: What is the advantage of sapphire crystal?
A: Sapphire crystal is the second-hardest transparent material after diamond, offering exceptional scratch resistance that keeps your dial view pristine through years of daily wear. The anti-reflective coating further enhances legibility by reducing glare in bright conditions.
Q: Is the bracelet adjustable?
A: Yes, the stainless steel bracelet accommodates wrist sizes from 150mm to 205mm. Our team at Cassims & Co. can professionally size the bracelet to ensure a perfect fit at the time of purchase.
Q: Does this watch require any regular maintenance?
A: Solar-powered watches require minimal maintenance—no battery changes are needed. We recommend occasional professional cleaning and gasket inspection to maintain water resistance, and ensuring the watch receives adequate light exposure to keep the solar cell charged.
Q: What does the tachymeter bezel measure?
A: The tachymeter scale on the bezel allows you to calculate speed based on travel time over a known distance, or measure distance based on known speed and travel time—a useful tool for motorsport enthusiasts and professionals alike.
Warranty
- This watch is covered by a 1-year international Casio warranty from the date of purchase, valid when purchased from an authorised retailer such as Cassims & Co.
- The warranty covers manufacturing defects in materials and workmanship under normal use conditions.
- The warranty does not cover normal wear and tear, scratches, cosmetic damage, or deterioration of non-metal straps and bracelets.
- Water damage resulting from improper use (such as operating pushers underwater or exceeding the stated water resistance rating) is not covered.
- The solar cell and capacitor are covered under the manufacturer's warranty for defects, but natural degradation over many years of use is considered normal wear.
- Damage resulting from accidents, misuse, unauthorised repairs, or servicing by non-authorised technicians will void the warranty.
- Proof of purchase from an authorised retailer is required for all warranty claims.
- Warranty service is provided through Casio's authorised service network—contact Cassims & Co. for assistance with warranty claims or service requirements.
Care Guide
- Expose the watch to natural or artificial light regularly to maintain solar charge—even indirect indoor lighting is sufficient for continuous operation.
- Clean the stainless steel case and bracelet with a soft, lint-free cloth; for deeper cleaning, use mild soapy water and a soft brush, then dry thoroughly.
- Avoid exposing the watch to extreme temperatures, strong magnetic fields, or harsh chemicals including solvents, perfumes, and cleaning agents.
- Rinse with fresh water after exposure to saltwater or chlorinated water to prevent corrosion and mineral build-up.
- Do not operate the chronograph pushers or crown while the watch is wet or submerged, as this may compromise water resistance.
- Have the water resistance gaskets inspected and replaced every two to three years to maintain the 100-metre rating.
- Store the watch in a location where it can receive occasional light exposure—prolonged storage in complete darkness will eventually deplete the solar charge.
- If the watch has been stored without light exposure for an extended period, place it under bright light for several hours to recharge the solar cell before use.