# Watch Casio GA-100-1A4ER

**URL:** https://aio.lv/en/product--casio-ga-100-1a4er--1857079
**Data updated:** 2026-06-15 18:12 (EEST)
**Category:** Office Wall & Desk Clocks
**Manufacturer:** CASIO
**Manufacturer code:** GA-100-1A4ER
**EAN:** 4971850443940
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 97.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 80.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--casio-ga-100-1a4er--1857079

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Casio GA-100-1A4ER is a durable watch featuring a resin case and band, mineral glass, and a CR1220 battery with a 2-year life. Weighing only 70g, it has dimensions of 51.2 x 16.9 x 55 mm, making it lightweight and comfortable for daily wear. Perfect for outdoor activities, this watch combines functionality with style.

## Long description

The Casio GA-100-1A4ER is a durable analogue-digital wristwatch with a resin case and band, mineral glass and a CR1220 battery providing about two years of operation. It combines shock and magnetic resistance with world time, stopwatch, countdown timer, multiple alarms and a bright LED illumination with Auto Light Switch for convenient reading of the display. Lightweight and compact, it is suitable for everyday wear and outdoor activities.
Advantages
Shock-resistant construction and magnetic shielding protect internal components from impacts and magnetic fields. The Auto-LED light improves legibility in low light, while mineral glass resists scratches. Long battery life (approx. 2 years) and a 20 bar (200 m) water resistance rating allow use during water activities. Multiple timing functions — world time, 1/1000 sec stopwatch up to 100 hours, 24-hour countdown timer with auto-repeat, five daily alarms and snooze — provide flexible time management.
Suitable for
Everyday wear and commuting
Outdoor and sports activities (running, hiking, cycling)
Water activities without scuba diving (swimming, snorkeling)
Interval training and precise time measurement
Daily medication or recurring reminders
Key specifications
Brand: CASIO, Model: GA-100-1A4ER, MPN: GA-100-1A4ER, EAN: 4971850443940
Case and band material: resin; Glass: mineral
Movement: analogue-digital; Battery: CR1220, approx. 2 years
Water resistance: 20 bar / 200 m (suitable for free diving without scuba gear)
Dimensions: 51.2 × 55 × 16.9 mm; Weight: 70 g
Illumination: Auto-LED light with Auto Light Switch
Functions: shock resistant, magnetic resistant, world time, stopwatch (1/1000 s, up to 100 h), timer (1 min, up to 24 h, auto-repeat), 5 daily alarms, snooze, auto calendar, 12/24-hour format
How to use
Set the time, date and desired alarms using the watch’s mode and adjust buttons following the user manual. Use the mode button to switch between timekeeping, world time, stopwatch and timer functions. Activate the Auto Light Switch if you need the display to illuminate when the watch is tilted toward your face. For swimming or snorkeling, ensure the crown and buttons are properly secured before exposure to water.
Usage recommendations
Avoid exposing the watch to strong chemicals, solvents or prolonged direct sunlight. Have the battery replaced by an authorised service centre to maintain water resistance and check seals after battery change or heavy impacts.

## Specifications

| Feature | Value |
|---|---|
| Dimensions (WxDxH) | 51.2 x 16.9 x 55 |
| Weight | 0.07 kg |
| Battery type | CR1220 |
| Number of batteries supported | 1 |
| Timer | 1/1min - 24h |
| Battery life | 2 year(s) |
| Snooze function | Yes |
| Shockproof | Yes |
| Calendar | Yes |
| Stopwatch | Yes |
| LED backlight | Yes |
| Alarm function | Yes |
| Clock mode | 12h/24h |
| World time function | Yes |
| Band material | Resin |
| Accuracy | ±15 |
| Watch glass type | Mineral |
| Watch case material | Resin |
| Water resistant depth | 200 m |

## FAQ

### How much does the Watch Casio GA-100-1A4ER cost, and is it available for purchase?

The price is 97.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 06.07.2026 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 Watch Casio GA-100-1A4ER 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

## Image

https://aio.lv/img/cache/product/1857079/64188386_large.webp