The Casio B640WB-1ADF-S is a sleek digital watch from Casio's Vintage collection, combining classic retro styling with a distinctive black ion-plated stainless-steel band. Its compact rectangular case and digital display deliver the unmistakable Casio vintage look, while practical features including a stopwatch, countdown timer, daily alarm, LED backlight, and 50-meter water resistance make it a functional choice for everyday wear.
Key Features
Classic Casio Vintage digital design
Black ion-plated stainless-steel band
50-meter water resistance
1/100-second stopwatch
Countdown timer
Daily alarm
Hourly time signal
LED backlight with afterglow
Flash alert
Full auto-calendar
12/24-hour time format
Approximately 3-year battery life
Functions
1/100-second stopwatch
Measuring capacity: 23:59'59.99"
Elapsed time
Split time
1st and 2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Daily alarm
Hourly time signal
Flash alert for alarm, hourly time signal, and countdown timer
Full auto-calendar
12/24-hour format
Regular timekeeping: hour, minute, second, PM, month, date and day
Display
Digital LCD display
LED backlight
Selectable illumination duration
Afterglow
Clear day, date and time display
Design & Build
Case / Bezel Material: Resin
Band: Stainless-steel band
Band Finish: Black ion plated
Clasp: Adjustable clasp
Glass: Resin Glass
Color: Black
Retro rectangular case design
Water Resistance: 50 meters
Power
Battery: CR2016
Battery Life: Approximately 3 years
Dimensions & Weight
Case Size (L × W × H): 38.9 × 35 × 9.4 mm
Weight: Approximately 44 g
Ideal For
Suitable for:
Everyday wear
Vintage and retro-inspired outfits
Casual and smart-casual styling
Users looking for an all-black digital watch
Fans of classic Casio designs with modern everyday functionality
