# Wrist watch CASIO GA-2100-4AER — unisex, carbon/resin case, 45.4×11.8×48.5 mm, red

**URL:** https://aio.lv/en/product--casio-ga-2100-4aer--10547130
**Data updated:** 2026-03-07 17:53 (EET)
**Category:** Office Wall & Desk Clocks
**Manufacturer:** CASIO
**Manufacturer code:** GA-2100 -4AER
**EAN:** 4549526241758
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 104.49 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 86.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--casio-ga-2100-4aer--10547130

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Casio GA-2100-4AER is a unisex wrist watch with a carbon and resin case in red. Key specifications: case width 45.4 mm, depth 11.8 mm, height 48.5 mm, battery type SR726W with approx. 3 years battery life. The model combines digital-analog timekeeping and durable materials suitable for everyday wear and casual activities.

## Long description

The CASIO GA-2100-4AER is a unisex digital-analog wrist watch with a carbon-reinforced resin case in red. Designed for everyday wear, it combines a compact, low-profile silhouette with utility features such as world time, stopwatch, countdown timer and five daily alarms. The watch face uses a Double-Illuminator EL backlight and Neo-display luminous coating for legibility in low light, while mineral glass and a shock-resistant construction protect the watch from scratches, impacts and vibration. With a case width of 45.4 mm, depth of 11.8 mm and height of 48.5 mm, the model offers a balanced fit for a wide range of wrist sizes and a battery life of approximately three years with SR726W battery.
Advantages
The carbon-reinforced resin case provides enhanced durability and impact resistance compared with standard resin designs, while the mineral glass resists everyday scratches. The Double-Illuminator and Neo-display ensure both analogue hands and digital displays remain readable in darkness. Multiple timing functions — world time, 1/100-sec stopwatch up to 24 hours, up to 24-hour countdown timer and five independent alarms — cover a broad set of timing needs. Water resistance to 20 bar adds suitability for swimming and free diving without scuba gear.
Suitable for
Daily timekeeping and casual wear
Outdoor activities and light sports where shock resistance is required
Travel and international use with world time function
Timing tasks requiring stopwatch, countdown or multiple alarms
Water activities including swimming and snorkeling (up to 20 bar)
Key specifications
Case material: carbon-reinforced resin
Case dimensions: 45.4 × 11.8 × 48.5 mm (width × depth × height)
Display: combined analogue and digital
Glass: mineral
Illumination: Double-Illuminator EL backlight and Neo-display luminous coating
Shock resistance: Yes
Water resistance: 20 bar (suitable for free diving without scuba gear)
Stopwatch: 1/100 sec, up to 24 hours
Timer: countdown 1 second resolution, up to 24 hours
Alarms: 5 daily alarms
Calendar: automatic with date, day and month
Timekeeping formats: 12/24-hour
Battery type and life: SR726W, approximately 3 years
Band material: synthetic resin with buckle closure
How to use
Set the current time and date using the mode and adjust buttons following the watch’s standard procedure: enter timekeeping mode, press and hold the adjust button to start setting, then use the mode button to cycle through seconds, hours, minutes, year, month and day. Use the world time mode to view the current time in major cities, and press the button to move the hands aside (Hand Moving Function) when you need clear access to the digital display. Start and stop the stopwatch or the countdown timer with the designated buttons; enable or disable button tones as required. Use the EL backlight to illuminate both analogue and digital areas in low light conditions.
Usage recommendations
For long-lasting performance, avoid exposing the watch to strong chemicals, prolonged high temperatures or extreme impacts. Rinse with fresh water after use in salt water, and have battery replacement and water-resistance checks performed by an authorized service center to maintain the 20 bar rating.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.051 kg |
| Battery type | SR726W |
| Number of batteries supported | 1 |
| Height | 48.5 mm |
| Width | 45.4 mm |
| Depth | 11.8 mm |
| Timer | 1/1 s - 24 h |
| Battery life | 3 year(s) |
| Shockproof | Yes |
| Gender | Unisex |
| Calendar | Yes |
| Stopwatch | Yes |
| Countdown timer | Yes |
| Product design | Sport |
| Alarm function | Yes |
| Clock mode | 12h/24h |
| Backlight type | EL |
| Waterproof | Yes |
| Band material | Resin |
| Accuracy | -15 - 15 |
| Watch glass type | Mineral |
| Housing colour | Red |
| Watch marker colour | Red |
| Watch marker style | No markers |
| Case shape | Round |
| Chronometer | Yes |
| Watch dial type | Analog & LCD dial |
| Stopwatch accuracy | 0.01 s |
| Stopwatch measuring capacity | 1/100 s - 24 h |
| Watch case material | Carbon, Resin |
| Watch type | Wrist watch |
| Band main colour | Red |
| Watch dial main colour | Red |
| Calendar type | Day |

## FAQ

### How much does the CASIO GA-2100-4AER wrist watch cost, and is it available for purchase?

The price is 104.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 13.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can CASIO GA-2100-4AER wrist watch be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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

### Where can I download the instructions for CASIO GA-2100-4AER wrist watch?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10547130/65218311_large.webp