Original package description: Tag attached (no box), Original packaging: Yes, Booklet included: Yes, Brand: Casio
Water resistance: 30m (3 ATM), Category: Men's, Unisex, Band color: Black, Model: B640
Band material: Stainless steel, Complication: Alarm, Age range: Adults.
Reference number: B640WB-1ADF, Function: Day of the week/Date, Display: Digital
Style: Retro, Vintage, Classic; Case Color: Black; Type: Wristwatch.
:
1/100 second stopwatch. 50-meter water resistance. Popular retro design. LED backlight. Black ion-plated band. Case/bezel material: resin. Stainless steel band. Adjustable clasp. Resin glass. Black ion-plated band. Black IP. 50-meter water resistance. LED backlight. Afterglow. Flash alert. Flashing buzzer to sound alarm, hourly time signal. 1/100 second stopwatch. Measurement range: 00'00"00~59'59"99 (first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measurement unit: 1/100 second (first 60 minutes) 1 second (after 60 minutes) Measurement modes: elapsed time, split time, 1-2 digits. Countdown timer. Measurement unit: 1 second. Countdown range: 24 hours. Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments, 1-hour increments) Other: Auto-repeat, multi-function alarm, hourly time signal, full auto calendar (until 2039), 12/24 hour format. Normal time management: hours, minutes, seconds, PM, month, date, day of the week. Accuracy: ±30 seconds/month (approx.)
Battery life: 3 years with CR2016 battery. Case size: 38.9 x 35 x 9.4 mm. Total weight: 49 g.
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