Casio G-Shock GA-2100K-1AER Men's • Carbon Core Guard • World Time
Casio G-Shock GA-2100K-1AER Men's • Carbon Core Guard • World Time
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Model Number: GA-2100K-1AER
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Product Details
Description
The Casio G-Shock GA-2100K-1AER is an analogue-digital men's watch from the CLASSIC GA-2100 series, inspired by the music-driven nightlife scene. A newly developed surface finish gives the dial a clear, deep piano-black appearance, while neon accents sparkle like laser light. Semi-transparent materials with a matte finish on the bezel and strap evoke the haze of a fog machine on the dance floor — contemporary design paired with G-SHOCK's signature shock resistance.
The carbon and resin case features the iconic Carbon Core Guard structure and is water-resistant to 20 bar. The resin strap fits wrists from 145 to 215 mm. The watch combines analogue time display (hour and minute hands) with a digital display showing hours, minutes, seconds, date and month. Practical functions include world time (31 time zones), 1/100-second stopwatch, countdown timer (up to 24 hours), 5 daily alarms and a fully automatic calendar through 2099. The dual LED illumination (Super Illuminator) ensures excellent legibility in the dark, complemented by Neobrite luminous coating.
Key Features of the Casio GA-2100K-1AER
- Carbon Core Guard structure for maximum shock resistance in a slim profile
- Water-resistant to 20 bar with mineral glass and carbon composite resin case
- World time across 31 time zones, stopwatch, timer and 5 daily alarms in a compact analogue-digital design
Technical Data
Basic data
| Target group |
Men |
|---|---|
| Manufacturer | Casio |
| Model series / Collection |
G-Shock Classic GA-2100 |
| Model number |
GA-2100K-1AER |
| EAN / GTIN | 4549526416552 |
| Display type |
Analog-digital |
| Water resistance in bar |
20 |
| Colour |
Black |
| Other features |
World time (31 time zones, 48 cities), dual LED illumination (Super Illuminator), Neobrite, 5 daily alarms, fully automatic calendar until 2099, 12/24-hour format, hand setting function, hourly time signal |
Case & Construction
| Case material |
Carbon |
|---|---|
| Case colour |
Black |
| Case diameter in mm |
4,54 |
| Case shape |
Round |
| Case height in mm |
1,18 |
| Weight in grams |
51 |
| Watch glass |
Mineral glass |
Dial & Display
| Dial colour |
Black |
|---|---|
| Second hand |
No |
| Luminous material (Lume) |
Yes (hands & indices) |
Movement & Drive
| Drive type / Movement |
Quartz (battery) |
|---|---|
| Date display |
Yes |
| Stopwatch function |
Yes |
| Day display |
Yes |
| Timer |
Yes |
| Number of batteries |
2 |
Strap & Clasp
| Strap material |
Resin |
|---|---|
| Strap colour |
Black |
| Max. wrist circumference |
21,5 |
Care instructions
Care Instructions for Wristwatches
Care & Cleaning
- Daily: Wipe case and bracelet with a soft, dry cloth to remove dirt and perspiration.
- Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, dry thoroughly.
Important: Screw the crown down firmly beforehand!!! - Not water-resistant: Clean only dry or slightly damp, do not use water or cleaning agents.
- Avoid: Harsh chemicals, perfume, cosmetics and heat.
- Leather straps: Do not soak, clean only slightly damp and allow to dry away from heat.
- Water resistance: Do not wear in the shower or bath, have it tested annually.
- Battery (quartz): Have a depleted battery replaced immediately.
- Mechanical watches: Service by a master watchmaker every 5 years.
Storage & Handling
- Store the watch separately, not in direct contact with other jewellery (risk of scratching).
- Place mechanical watches on a flat surface when winding, do not leave the crown pulled out.
Scope of delivery
Product questions
Find your perfect fit
Casio – Functional Watches for Modern Everyday Life
Casio became known in the 1970s for wristwatches that redefined technology and everyday usability. Digital displays, innovative functions, and robust construction made the brand popular worldwide.
To this day, Casio wristwatches stand for reliability and practical use. They are aimed at people who value functionality, durability, and a clear price-performance ratio.
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