The Casio F-91WS-7A3JF is a new iteration of the beloved F-91 series, first released in 1989. This model combines a transparent resin band with a metallic-painted case, offering a fresh and sophisticated look while retaining the original's iconic design and functionality.

• Case, bezel, and band material: Resin
• Case size (L x W x H): 38.2 × 35.2 × 8.5 mm
• Weight: 21 g
• Band fits wrist sizes from 145 to 200 mm
• Crystal: Resin glass
• Water resistance: Daily use water resistance
• Power source: Approximately 7-year battery life
• Stopwatch: 1/100 second, 60-minute capacity, with split time
• Alarm: Time alarm and hourly time signal
• Light: LED backlight (green)
• Calendar: Auto calendar
• Accuracy: ±30 seconds per month
• Other features: 12/24-hour format display