CASIO F-91WB-8A Vintage - Grey Bio-Based Resin

The icon, refined. The Casio F-91WB-8A takes the legendary F-91W formula and gives it a cleaner, more contemporary finish. Same unmistakable digital silhouette, same 21-gram lightweight construction, same proven functionality, now paired with a modern grey tone and a bio-based resin band. Minimal, practical and instantly recognizable. The F-91W has never needed to try too hard, and neither does this one.

Brand New. 100% Genuine. Limited Pieces Available at Good Wrist.

Key Features

• Iconic F-91W design in a refined grey finish

• Lightweight 21g construction for exceptional comfort

• Bio-based resin band

• 1/100-second stopwatch with split timing and 1st-2nd place timing

• Daily alarm and hourly time signal

• Green LED backlight

• Day and date display

• Auto-calendar

• 12/24-hour time format

• Water resistant for everyday use

• Approximate 7-year battery life on CR2016

• Reliable Casio quartz accuracy (±30 seconds per month)

• Compact 38.2 × 35.2 × 8.5 mm case

The F-91W became an icon by doing the basics exceptionally well. The F-91WB-8A keeps that same philosophy while bringing a more modern material and finish to the original formula. Lightweight, understated and built for everyday life, this is a classic that feels right at home in 2026.