

⏳ Elevate your wrist game with Casio’s ultimate timekeeper—where function meets fearless style.
The Casio GA-2100-1A1ER is a unisex analog-digital quartz watch featuring a durable black resin case with mineral glass, a comfortable black silicone strap, and a 42mm diameter. It offers a digital date display, stopwatch, countdown timer, and five independent alarms, all powered by precise Japanese quartz movement. Water-resistant up to 200 meters, this lightweight 30-gram watch is perfect for professionals who demand style, reliability, and functionality in every moment.
| ASIN | B07WGJ1JNW |
| ASIN | B07WGJ1JNW |
| Age Range Description | Adult |
| Band Color | Black |
| Band Length | 22 Centimeters |
| Band Material Type | Resin |
| Band Width | 25 Millimeters |
| Bands | 1 |
| Batteries | 1 Lithium Metal batteries required. |
| Best Sellers Rank | #212,270 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #670 in Men's Wrist Watches |
| Brand Name | Casio |
| Case Diameter | 42 Millimeters |
| Case Material Type | Plastic |
| Case Thickness | 11.8 Millimeters |
| Character | No aplica |
| Clasp Type | Buckle |
| Closure Type | Buckle |
| Crystal | Mineral Glass |
| Customer Reviews | 4.7 4.7 out of 5 stars (3,167) |
| Date First Available | August 20, 2019 |
| Department | mens |
| Dial Color | Black |
| Display | Analog-Digital |
| Embellishment Feature | Crystal |
| Face Style | Mixed |
| Global Trade Identification Number | 04549526241659 |
| Included Components | the brand's case |
| Is Discontinued By Manufacturer | No |
| Item Type Name | Watch |
| Item Weight | 30 Grams |
| Item model number | GA-2100-1A1DR |
| Language | English |
| Manufacturer | Casio |
| Manufacturer | Casio |
| Model Name | GA-2100-1A1ER |
| Model Number | GA-2100-1A1DR |
| Pattern | Solid |
| Power Source | Battery Powered |
| Product Dimensions | 3.94 x 3.94 x 1.97 inches; 1.06 ounces |
| Series Number | 2100 |
| Shape | Round |
| Sport Type | Climbing, Fitness, Running/jogging |
| Strap Type | Two Piece Strap |
| Style Name | Strap. |
| Unit Count | 1.00 Count |
| Warranty Type | manufacturer-and-seller-combination |
| Watch Movement Type | Quartz |
| Water Resistance Depth | 200 Meters |
| Water Resistance Level | Waterproof |
E**A
Great Product
Classic Casio quality. The GA-2100 is lightweight, very comfortable, and extremely durable. The design is clean and modern, and it works perfectly for everyday use. Great value for the price and built to last.
J**Z
Exelencia calidad
Excelente
A**R
Casio really knocked it out of the park.
I've been a fan of g-shock watches for a long time but I won't deny a lot of them don't fit my personal fashion choices. I have skinny wrists so probably 90% of them are too large for me. Plus I work in an office most days and have to wear something that looks a bit nicer than the rugged appearance of the typical g-shock. So with all that said, this watch really ticks a lot of boxes for me. Yes, I would agree with some reviews here that the design choices do sacrifice the functionality at times. The LCD is small and the "stealth" looks of the all black model does affect the legibility. But having the ability to wear a g-shock with a suit makes it all worth it for me. I still find the watch plenty easy to read at a glance. I have found that this watch is especially well suited for travel. It's a good all around look for a variety of business casual outfits and looks equally at home in the board room as it does networking at a local restaurant. It's more than rugged enough to stand up to airports and taxi cabs and the alarms give me a little extra assurance when I need to get up early but I'm thrown off being in a new time zone. I am very pleased with this watch. If legibility is your top concern, there are variations of the "casio oak" that might be better suited for you. For me, having the all black look was worth some small sacrifices and I absolutely knew that was going to be the case when I bought it.
G**.
Durable
My husband wears this daily to work at his construction job sites. Looks great and is very durable. Great value for the price.
A**R
Great
The Casio G-Shock delivers exactly what the name promises: exceptional durability and reliable performance in a rugged package that stands up to daily wear, outdoor activities, and rough handling without complaint. Its shock-resistant case and resin band feel solid and resilient rather than cheap, the digital (or analog-digital) display is easy to read in a variety of light conditions, and standard features like stopwatch, countdown timer, world time, and strong battery life work consistently without fuss. If you want a watch that you can wear hard and forget about in terms of fragility, the G-Shock line offers outstanding value and dependable functionality that justify its reputation, making it a strong choice for everyday use, travel, and active lifestyles.
A**R
Great purchase
Great watch
L**A
Recomendado para regalar ! Super bonito
B**R
Durable and Good quality.
Durable and Good quality.
M**L
Très content de cet achat qui fait son effet !
L**R
Il faudrait pas vieillir mon capitaine Ma vue baisse La qualité est là mais c’est écrit trop petit pour moi Du coup je l’ai retourné Tant pis
L**I
Orologio solido e resistente , ma allo stesso tempo leggero , oltre che per me bellissimo esteticamente , la lettura notturna è difficile dati i colori , ma il quadrante è dotato di una micro spia luminosa che si accende con pulsante , anche se con evidenti differenze legate alle funzionalità rispetto agli Smart Watch , la trovo un ottima alternativa , a prezzo ed estetica decisamente più accettabili , e soprattutto senza l angoscia della ricarica quotidiana
S**P
Ben ürünü alalı yaklaşık 2 yıl oluyor o zamanlar gümrük ve vergi muhabbetleri şimdiki gibi saçma değildi bu yüzden ürünü Türkiye fiyatının yarı fiyatına almıştım. Ürün klasik casio taş gibi başına bir şey gelmezse de ömür boyu götüreceği kesin
J**L
light weight, 42mm, great quality as expected
Trustpilot
1 week ago
4 days ago