Casio WS-1700H Digital Tide Graph & Moon Phase Black Resin Sports Watch (WS-1700H-1A)
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- Authorised dealer
- Full manufacturer warranty
- Serviced in-house
- Secure checkout
Description
Built for ocean adventurers and outdoor enthusiasts, the Casio WS-1700H-1A delivers specialist marine intelligence wrapped in rugged black resin armour. This square-cased digital sports watch features integrated tide graph and moon phase displays—essential tools for surfers, sailors, and coastal explorers tracking tidal windows and lunar cycles. The high-visibility digital dial presents tidal height curves, moon phase graphics, and dual time zones at a glance, while amber-accented illuminator backlighting ensures readability when dawn breaks or dusk settles over the water.
Engineered to withstand the harshest marine environments, the 48.6mm black resin case and matching resin strap provide lightweight durability that won't corrode in salt spray or crack under UV exposure. Water resistance to 100 metres protects against submersion during swimming, snorkelling, and shallow diving, whilst the 10-year battery eliminates the frustration of frequent replacements—this watch is designed to accompany you through years of coastal expeditions without interruption. The resin glass withstands the knocks and scrapes inevitable in active outdoor pursuits.
At Cassims & Co., we proudly stock the full range of CASIO watches as an authorised South African retailer, ensuring every timepiece arrives with genuine Casio warranty backing and full after-sales support. Whether you're planning a surf safari along the Garden Route or navigating tidal estuaries, visit us at our Mall of the South boutique in Johannesburg to experience the WS-1700H's functionality first-hand, or order online for secure nationwide delivery. Our watch servicing and repairs team stands ready to support your timepiece throughout its lifespan.
Specifications
- Brand: Casio
- Model: WS-1700H-1A
- Case Shape: Square
- Case Diameter: 48.6mm
- Case Thickness: 15.2mm
- Case Material: Resin
- Dial Type: Digital
- Dial Colour: Black with grey LCD
- Glass: Resin
- Band Material: Resin
- Band Colour: Black
- Clasp Type: Buckle
- Movement: Quartz digital
- Battery Life: Approximately 10 years
- Water Resistance: 100m
- Functions: Tide graph, moon phase, dual time, alarm, stopwatch, illuminator, world time
- Weight: 48g
- Lug Width: 18mm
- Warranty: 1-year international Casio warranty
FAQ
Q: What is the tide graph function and how does it work?
A: The tide graph displays a visual representation of tidal height over time, allowing you to predict high and low tides at coastal locations. You can set the watch to your local beach or harbour, and it will calculate approximate tidal conditions based on moon phase data. This is invaluable for surfers seeking optimal wave conditions, fishermen targeting tidal feeding windows, or sailors planning harbour entries.
Q: How accurate is the moon phase display?
A: The WS-1700H tracks lunar cycles with excellent accuracy, displaying the current moon phase graphically on the dial. It automatically updates as the moon progresses through its 29.5-day cycle, eliminating the need for manual adjustment. This feature complements the tide graph, as lunar position directly influences tidal amplitude.
Q: Can I wear this watch while swimming or snorkelling?
A: Yes. With 100-metre water resistance, the WS-1700H is suitable for swimming, snorkelling, and recreational water sports. The resin construction resists corrosion from salt water, making it an excellent choice for beach and ocean activities. Avoid operating buttons underwater and rinse the watch with fresh water after ocean exposure to maintain optimal performance.
Q: How long does the battery last, and is it easily replaced?
A: The watch features an exceptional 10-year battery life under normal use, significantly reducing maintenance requirements. When replacement is eventually needed, our authorised service team can install a genuine Casio battery and retest water resistance to factory standards.
Q: Is the watch suitable for night-time use?
A: Absolutely. The electro-luminescent illuminator backlight bathes the entire digital display in amber-tinted light at the press of a button, ensuring full readability in darkness. The high-contrast LCD remains legible even in direct sunlight, making this watch equally functional dawn through dusk.
Q: What is the advantage of the resin case and strap over metal?
A: Resin offers superior corrosion resistance in marine environments—it won't oxidise in salt spray or develop verdigris like brass-based alloys. It's also significantly lighter than steel, reducing wrist fatigue during extended wear, and its shock-absorbent properties protect the module from impact damage during active pursuits.
Q: Can the strap be replaced if it wears out?
A: Yes. The watch uses an 18mm strap width, and genuine Casio replacement straps are available through authorised service centres. The resin strap is highly durable and typically lasts many years, even with regular exposure to sun, salt, and abrasion.
Warranty
- This watch is covered by a 1-year international Casio warranty from the date of purchase when bought from an authorised retailer.
- The warranty covers defects in materials and workmanship under normal use conditions.
- Warranty coverage includes the movement, case, and original strap/bracelet against manufacturing faults.
- The warranty does not cover normal wear and tear, including scratches, cosmetic blemishes, or strap deterioration from use.
- Battery replacement is considered routine maintenance and is not covered under warranty.
- Water damage resulting from misuse—such as operating buttons underwater, exposure beyond the rated depth, or failure to maintain seals—is excluded.
- Damage from accidents, impacts, unauthorised repairs, or modifications voids the warranty.
- To obtain warranty service, present your original proof of purchase to an authorised Casio service centre.
- Warranty service is provided by Casio or its authorised representatives and may include repair or replacement at Casio's discretion.
Care guide
- Rinse the watch with fresh water after exposure to salt water, chlorine, or sand to prevent residue build-up and maintain water resistance seals.
- Avoid pressing buttons while the watch is underwater, as this can compromise water resistance and allow moisture ingress.
- Store away from direct sunlight and extreme heat when not in use—prolonged UV exposure can fade resin materials over time.
- Clean the case and strap periodically with a soft damp cloth to remove dirt, sweat, and oils that can degrade resin.
- Do not expose the watch to solvents, chemicals, or insect repellents, as these can damage resin and cause discolouration or cracking.
- If water appears inside the crystal or condensation forms on the dial, discontinue use immediately and bring the watch to an authorised service centre for inspection and seal replacement.
- Avoid dropping the watch onto hard surfaces—whilst resin is shock-resistant, severe impacts can crack the case or damage the digital module.
- When the battery requires replacement after approximately 10 years, have this performed by an authorised Casio service centre to ensure genuine parts and re-testing of water resistance.
Why buy from Cassims & Co.?
Authorised. Authentic. Serviced here.
Authorised retailer
Every watch we sell comes from the brand or its official South African distributor, with the manufacturer's warranty registered to you. No grey imports, no parallel stock.
Set up before it leaves
Bracelet sized to your wrist, date and time set, warranty card stamped, in store or before dispatch.
In-house watchmakers
Battery changes, bracelet links, pressure tests and full services at our own Johannesburg service centre, so your warranty service never leaves the city.
Price-beat promise
Find the identical model in stock at a lower listed price from another authorised SA retailer and we'll match it.
Nationwide delivery
Tracked courier anywhere in South Africa, free from R1,500 (R150 under R1,500). Or collect at Mall of the South or Greenstone.
Delivery & returns
Tracked courier delivery across South Africa in 1–3 working days; free on orders from R1,500 (R150 on orders under R1,500). Collect in store at Mall of the South or Greenstone Shopping Centre at no charge.
See our shipping policy and refund policy for full details.
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