| Brand | Casio |
| Gender | Male |
| Model | B640WB-1BEF |
| Series | Retro Digital Illuminator |
| Movement | Quartz |
| Water Resistant | 50 Meters |
| Band Material | Bracelet |
| Band Color | Black |
| Band Width | mm |
| Band Length | Men's Standard |
| Band Type | Bracelet |
| Clasp | Deployant |
| Case Material | Resin |
| Case Size | 38.9 mm x 38.9mm |
| Case Thickness | mm |
| Case Shape | Tonneau |
| Case Back Type | Screwed in |
| Display Type | Digital |
| Dial Color | Black |
| Crystal | Plastic |
| Crown | Pull-push |
| Bezel | Black Stainless Steel |
| Calendar | Date,Day and Month |
![Lexuma XTag組合 – Apple Watch智能無線充電器 [MFi] 和Apple Watch 1-6屏幕保護貼](https://www.vjltrush.shop/image/lexuma-xtag-apple-watch-mfi-apple-watch-1-6_2JhJxG_285x.webp "Lexuma XTag組合 – Apple Watch智能無線充電器 [MFi] 和Apple Watch 1-6屏幕保護貼")
