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| 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 | Electronics |
| 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.
Watch B640WB-1BEF
(Ref. 37191)
Official European Union notice on your rights in the event of a product's lack of conformity.
For purchases made in-store or on our website between November 3 and December 14, 2026.
From your order page or by contacting our customer service team.
Item must be new, unworn, unpersonalized, and in its original packaging. You are responsible for return shipping costs.