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| Reference Ocarat | #20399 |
| Reference | B640WC-5AEF |
| Brand | Casio Vintage |
| Product Type | Watch |
| Gender | Women |
| Color | Brown Pink |
| Material | Synthetic |
| Material Quality | Resin |
| Warranty | 2 Years |
| 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 | Night Illumination |
| Bracelet Material | Steel |
| Strap Color | Pink |
| Watch Clasp | Deployant Buckle |
| Lug Width (in mm) | 18,00 |
The Watch
This version features a copper-toned steel bracelet and a resin case with a copper-toned back and a beige electroluminescent LED dial. It includes multiple alarm functions, a 1/100th-second stopwatch, countdown timers, and an auto-calendar. An LED flashes whenever a set alarm, countdown, or hourly signal is triggered.
It is not waterproof but is splash-resistant - avoid wearing it in the shower or while washing dishes.
B640WC-5AEF Watch
(Ref. 20399)
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.