| Reference Ocarat | #37191 |
| Reference | B640WB-1BEF |
| Brand | Casio Vintage |
| Product Type | Watch |
| Gender | Men Women |
| Color | Black Gray |
| Material | Synthetic |
| Material Quality | Resin |
| Warranty | 2 Years |
| Length (in mm) | 38,90 |
| Width (in mm) | 35,00 |
| Thickness (in mm) | 9,40 |
| Manufacturing | Asia |
| Warranty Type | International |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Barrel chain |
| Case Weight (in g) | 49,00 |
| Crystal Shape | Flat |
| Buttons | 3 Pushers |
| Water Resistance (in ATM) | 0 |
| Movements | Quartz |
| Movement Type | Electronic |
| Movement Brand | Casio |
| Calendar and Time | Dates Hours Minutes Seconds |
| Timekeeping and Measurement | 1/100th of a second chronometer |
| Alarm-Wake Up | Yes |
| Display Type | Digital |
| Display Specifications | LED Night Illumination |
| Bracelet Material | Steel |
| Strap Color | Black |
| Watch Clasp | Deployant Buckle |
| Lug Width (in mm) | 18,00 |
The Watch
This version features a black steel bracelet and a black resin case with a black back and an electroluminescent gray LED dial. It includes multiple alarm functions, a 1/100th-second stopwatch, countdown timers, and an automatic calendar. An LED flashes when the alarm, countdown, or scheduled time signal is triggered.
It is not waterproof but is splash-resistant - avoid wearing it in the shower or while doing dishes.


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Watch B640WB-1BEF
(Ref. 37191)