Casio F-91WS Vintage Digital Quartz Clear Translucent Resin Watch (F-91WS-7DF)

Sale price
R 750
List price
R 999

The Casio F-91WS-7DF reimagines the legendary F-91W digital watch with a striking clear translucent resin case and bracelet, creating a contemporary aesthetic that honours the original's iconic status. This vintage-inspired digital timepiece combines Casio's renowned reliability with modern styling, offering a 7-year battery life and water resistance in a lightweight 21-gram package that sits comfortably on any wrist.

Equipped with essential digital functions including an alarm, chronograph, and LED backlight, the F-91WS delivers practical everyday functionality in a design that has transcended generations. The classic digital display shows time, date, and day information at a glance, whilst the durable resin construction ensures longevity in daily wear. At Cassim & Co., we are proud to offer this authorised Casio timepiece as part of our commitment to bringing iconic watchmaking to South Africa.

Whether you're drawn to the nostalgic appeal of 1980s digital design or appreciate the minimalist clarity of modern resin aesthetics, the F-91WS-7DF delivers exceptional value. The translucent case construction allows a unique view of the watch's internal architecture, whilst the compact 38.2mm case diameter ensures versatility across both casual and smart-casual wardrobes. Browse our full range of CASIO watches to discover more from this pioneering Japanese manufacturer.

This timepiece is supported by Casio's comprehensive international warranty and our dedication to after-sales service. Our watch servicing and repairs team stands ready to assist with battery replacements and general maintenance throughout your ownership experience. Visit us at our Mall of the South boutique in Johannesburg to experience the F-91WS-7DF in person, or take advantage of our nationwide delivery service across South Africa.

Specifications

  • Reference Number: F-91WS-7DF

  • Brand: Casio

  • Movement: Quartz Digital

  • Case Size: 38.2 × 35.2 × 8.5 mm

  • Case Material: Clear Translucent Resin

  • Bezel Material: Resin

  • Dial Colour: White

  • Crystal: Resin

  • Bracelet Material: Clear Translucent Resin

  • Bracelet Colour: Clear

  • Water Resistance: 30 metres (3 ATM)

  • Weight: 21 grams

  • Battery Life: Approximately 7 years (CR2016)

  • Functions: Digital time display, alarm, chronograph (1/100 second), LED backlight, 12/24-hour format, daily alarm, hourly time signal

  • Module Number: 587/593

  • Gender: Unisex

  • Style: Casual, Vintage, Digital

  • GTIN/Barcode: 4549526261114

FAQ

Q: What is the battery life of the Casio F-91WS-7DF?

A: The F-91WS-7DF features an impressive 7-year battery life powered by a CR2016 battery, significantly reducing the frequency of battery replacements compared to many digital watches.


Q: Is this watch suitable for swimming or showering?

A: The watch offers 30-metre (3 ATM) water resistance, making it suitable for everyday splashes and brief immersion in water. However, it is not designed for swimming, diving, or prolonged water exposure. We recommend avoiding pressing buttons whilst underwater.


Q: What are the dimensions of this watch and will it fit smaller wrists?

A: The F-91WS measures 38.2 × 35.2 × 8.5 mm with a compact profile and weighs only 21 grams. Its modest dimensions and resin bracelet make it highly versatile for both smaller and larger wrists, truly embodying unisex design.


Q: Does the LED backlight illuminate the entire display?

A: Yes, the integrated LED backlight provides clear illumination of the digital display for easy reading in low-light conditions. Simply press the designated light button to activate the backlight function.


Q: How do I adjust the resin bracelet for a proper fit?

A: The resin bracelet on the F-91WS is integrated and cannot be adjusted through link removal. However, the flexibility of the resin material allows it to conform comfortably to most wrist sizes. Visit our Mall of the South boutique for a fitting consultation.


Q: What is the chronograph accuracy on this model?

A: The built-in chronograph measures elapsed time with 1/100-second precision, making it suitable for timing everyday activities, exercises, and other time-sensitive tasks with exceptional accuracy.


Q: Is the clear resin case prone to yellowing over time?

A: Casio uses high-quality resin materials designed for durability and colour stability. Whilst prolonged UV exposure may eventually affect any resin product, proper care and avoiding excessive sun exposure will maintain the clear aesthetic for years.

Warranty

  • This Casio F-91WS-7DF carries a 1-year international Casio warranty from the date of purchase when purchased from an authorised retailer.

  • The warranty covers manufacturing defects in materials and workmanship under normal use conditions.

  • The warranty does not cover normal wear and tear, scratches, battery replacement, or deterioration of consumable components such as the resin bracelet and case.

  • Water damage resulting from misuse, improper operation, or failure to observe water resistance limitations is not covered by warranty.

  • Accidental damage, impacts, modifications, or repairs performed by unauthorised service centres will void the warranty.

  • To claim warranty service, the original proof of purchase from an authorised Casio retailer must be presented.

  • Cassim & Co., as an authorised Casio retailer, facilitates warranty claims and provides comprehensive after-sales support including battery replacements and general maintenance.

Care Guide

  • Wipe the case and resin bracelet regularly with a soft, lint-free cloth to remove dirt, perspiration, and oils that may accumulate during wear.

  • Avoid exposing the watch to extreme temperatures, direct sunlight for extended periods, or harsh chemicals including solvents, detergents, and perfumes, which may damage the resin material.

  • Do not press any buttons whilst the watch is wet or submerged, as this may compromise water resistance and allow moisture ingress.

  • If the watch comes into contact with salt water, rinse thoroughly with fresh water and dry completely with a soft cloth.

  • Store the watch in a cool, dry location away from direct sunlight when not in use to preserve the clarity of the translucent resin.

  • Replace the battery promptly when the display dims or functions become erratic. Battery replacement should be performed by an authorised service centre to maintain water resistance integrity.

  • Avoid impacts, dropping, or crushing the watch, as the resin case and crystal may crack or shatter under excessive force.

  • Do not attempt to open the case back yourself, as this will void the warranty and may compromise the watch's water resistance seal.

Why Buy From Cassim & Co.?
When you purchase the Casio F-91WS-7DF from Cassim & Co., you're guaranteed an authentic timepiece backed by our status as an authorised Casio retailer in South Africa. Beyond the initial sale, our experienced team at Mall of the South provides comprehensive after-sales support including battery replacements, bracelet adjustments, and expert advice to ensure your watch delivers years of reliable service. Whether you visit our Johannesburg boutique or take advantage of our nationwide delivery service, you benefit from our commitment to horological excellence and customer care that extends well beyond the point of purchase.

Related products