The Casio B640WMR-5A is a delightful blend of retro charm and modern functionality. With its iconic square case and rose gold ion-plated stainless steel band, this unisex watch evokes memories of classic ’80s digital timepieces.
| Price | ★★★★★ |
| Functions | ★★★ |
| Weight | ★★★★ |
| Battery | ★★★ |
| Size | ★★★ |
Model Year: 2020
Series Year: 2012
Module: 3294 (Manual)
Battery: CR2016 (3 years)
| Specifications | |
| Basic Information | |
| Case size (L× W× H) | 38.9 × 35 × 9.4 mm |
| Weight | 55 g |
| Case and bezel material | Resin |
| Band | Stainless Steel Mesh Band, Adjustable Clasp |
| Water resistance | 50-metre water resistance |
| Power supply and battery life | Approx. battery life: 3 years on CR2016 |
| Exterior | |
| Glass | Resin Glass |
| Surface treatment | Rose gold ion-plated band |
| Watch Features | |
| Stopwatch | 1/100-second stopwatch; Measuring capacity: 00’00”00 to 59’59”99 (first 60 minutes), 1:00’00 to 23:59’59 (after 60 minutes); Measuring unit: 1/100 second (first 60 minutes), 1 second (after 60 minutes); Measuring modes: Elapsed time, split time, 1st-2nd place times |
| Timer | Countdown timer; Measuring unit: 1 second; Countdown range: 24 hours; Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments, and 1-hour increments); Other: Auto-repeat |
| Alarm/hourly time signal | Hourly time signal, Multi-function alarm |
| Flash alert feature | Flash alert; Flashes with buzzer that sounds for alarms, hourly time signal |
| Light | LED backlight, Afterglow |
| Light colour | LED: Amber |
| Calendar | Full auto-calendar (to year 2039) |
| Accuracy | ±30 seconds per month |
| Other features | 12/24-hour format |
| Regular timekeeping | Hour, minute, second, pm, month, date, day |
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