Casio Collection Watch F-91WB-8AEF

Presenting the Casio F-91WB-8AEF, the darkest and most sought-after version of the most recognizable digital watch on the planet. Where the original model relied on the classic black and silver contrast, this variant takes the concept to its logical extreme: a square matte black resin case, a smooth black strap with a soft texture, and a bezel completely stripped of any numerical markings or decorative elements. Only the CASIO logo in subtle gold lettering and the F-91W reference at the top of the bezel break the uniform darkness. The LCD display occupies nearly the entire dial face, presenting the time in large, highly legible digits, flanked by alarm and PM indicators, day of the week at the top and seconds on the right. The WR label appears discreetly at the bottom of the screen. The result is a watch of almost radical sobriety, with a stealth character that has made it a cult object for those who value functional minimalism.

Inside beats the Casio module 593, a digital caliber of proven reliability with decades of worldwide success. The display shows the time in 12/24-hour format, the full date with day of the week, and a daily alarm with hourly time signal. The stopwatch measures up to 24 hours with 1/100-second precision. The LED backlight illuminates the display in low-light conditions with a single discreet press. All of this comes with a battery life of approximately seven years thanks to the CR2016 cell. Light enough to forget you are wearing it, at just 21 grams and 8.5 mm thick, the F-91WB is as comfortable on the wrist of a university student as on that of someone seeking absolute discretion.

The Casio F-91W was born in 1991 and has been in continuous production ever since, becoming the best-selling digital watch in history. Its design has not changed because it does not need to: every element serves a purpose and nothing is superfluous. The Casio Timeless Collection brings together precisely these timeless models that have outlasted trends and decades without losing an ounce of relevance. The F-91WB-8AEF is the purest expression of that philosophy: same DNA, total black finish for those who prefer their watch to speak in silence.

Shopping at TicTacArea.com means buying from real jewelers with over 30 years of industry experience, serving as official distributors, online since 1999. Every product is genuine, factory-new, and delivered with its official presentation box, documentation, and international warranty.

Technical Specifications

Reference: F-91WB-8AEF
Module/Caliber: 593
Type: Digital
Movement: Digital quartz
Water Resistance: WR (water resistant for everyday use)
Case Material: Resin
Case Color: Matte black
Case Shape: Square
Case Dimensions: 35.2 x 38.2 mm
Thickness: 8.5 mm
Weight: 21.0 g
Strap Material: Resin
Strap Color: Black
Dial Color: Black (LCD display)
Crystal: Mineral
Light: LED backlight
Functions: Time (12/24h), date, day of the week, daily alarm, hourly time signal, 1/100-sec stopwatch (up to 24h), backlight
Battery: CR2016 (approx. 7-year life)
Collection: Casio Timeless Collection
Made for: Unisex