# Wrist watch CASIO B640WD-1AVEF — unisex electronic watch, resin case, 35×38.9×9.4 mm, CR2016 battery, ISO 22810

**URL:** https://aio.lv/en/product--casio-239-uniw--11715473
**Data updated:** 2026-03-08 11:11 (EET)
**Category:** Office Wall & Desk Clocks
**Manufacturer:** CASIO
**Manufacturer code:** 239-uniw
**EAN:** 4971850965145
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 39.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--casio-239-uniw--11715473

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Casio B640WD-1AVEF is a unisex electronic wrist watch with a resin case finished in silver. It measures 35 mm wide, 38.9 mm high and 9.4 mm deep and runs on a CR2016 battery with an estimated 3‑year life. Compact and ISO 22810 certified for water resistance, it suits everyday wear, office use and casual activities.

## Long description

Casio B640WD-1AVEF is a unisex electronic wrist watch with a silver resin case and a digital display. Compact in size at 35 × 38.9 × 9.4 mm, the watch is powered by a CR2016 cell with an estimated 3-year battery life. It is designed for daily wear and conforms to ISO 22810 for water resistance, combining a classic Casio silhouette with a modern street style finish suitable for office and casual settings.
Advantages
The resin case offers a lightweight and durable construction while the digital display delivers clear time readout and straightforward operation. ISO 22810 water resistance protects the watch during everyday exposure to water. The small footprint and neutral silver finish make the model versatile for varied outfits and settings.
Suitable for
Everyday wear and commuting
Office and business-casual environments
Casual and street-style outfits
Users seeking a low-maintenance, battery-powered digital watch
Key specifications
Case material: resin
Case dimensions: 35 mm (width) × 38.9 mm (height) × 9.4 mm (depth)
Movement: electronic digital
Battery type: CR2016 with approximately 3 years of battery life
Water resistance: certified to ISO 22810
Display: digital
How to use
Set time and other functions using the side pushers according to the manufacturer’s control layout. Wear the watch on the wrist with the strap adjusted for a comfortable fit that prevents excessive movement. Replace the CR2016 battery at a qualified service center or authorized retailer when the display indicates low battery or after approximately three years of normal use.
Usage recommendations
For long-term performance, avoid exposing the watch to strong chemicals or prolonged high temperatures. Although ISO 22810 provides resistance to water for everyday activities, do not operate pushers while the watch is submerged and have water resistance checked after battery replacement or if the case is opened.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.049 kg |
| Certification | ISO 22810 |
| Battery type | CR2016 |
| Number of batteries supported | 1 |
| Height | 38.9 mm |
| Width | 35 mm |
| Depth | 9.4 mm |
| Battery life | 3 year(s) |
| Gender | Unisex |
| Calendar | Yes |
| Stopwatch | Yes |
| Countdown timer | Yes |
| Product design | Casual |
| Battery level indicator | Yes |
| LED backlight | Yes |
| Alarm function | Yes |
| Clock mode | 12h/24h |
| Waterproof | Yes |
| Band material | Stainless Steel |
| Accuracy | ±30 |
| Housing colour | Silver |
| Mechanism type | Electronic |
| Case shape | Oval |
| Watch dial type | LED dial |
| Watch case material | Resin |
| Watch type | Wrist watch |
| Band main colour | Stainless steel |
| Watch dial main colour | Black |
| Calendar type | Day |
| Water resistant depth | 50 m |
| Water resistant pressure | 5 ATM |

## FAQ

### How much does the CASIO B640WD-1AVEF unisex electronic watch cost, and is it available for purchase?

The price is 47.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CASIO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CASIO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11715473/67204171_large.webp