Casio G-Shock Carbon Core Guard GA-2100-4AJF Men's Watch

4.60 (653)
Best price today
$129.99
Best
AMAZON
4.60 (653)
In stock
$129.99
Prices last updated Feb 08, 2026

Highlights

  • Shock-resistant design for ultimate durability
  • Water resistant up to 100 meters, perfect for swimming and outdoor activities
  • Stylish octagonal case with vibrant red band for a modern look
  • Dual analog-digital display for versatile timekeeping
  • Supports 31 time zones, ideal for travelers
  • Sapphire crystal dial window for enhanced scratch resistance
  • Lightweight Carbon/Resin construction for comfortable wear

Description

Introducing the Casio G-Shock Carbon Core Guard GA-2100-4AJF, a remarkable timepiece that embodies strength, style, and functionality. Perfect for the modern man, this watch is designed with an octagonal shape and features a stunning black dial that contrasts beautifully with its vibrant red resin band. Engineered with the innovative Carbon Core Guard structure, this watch is not only shock-resistant but also exceptionally lightweight, making it ideal for both everyday wear and adventurous outings. The GA-2100-4AJF is equipped with both analog and digital displays, offering versatile timekeeping options. With a water resistance depth of 100 meters, it can withstand splashes and brief immersion, ensuring that it remains reliable no matter the situation. This model also features a date function and supports 31 time zones across 48 cities, making it perfect for travelers. Crafted with a durable resin case and a sapphire crystal dial window, this watch is built to last. The included Lithium Metal battery ensures long-lasting performance, while the buckle clasp provides a secure fit on your wrist. Whether you're hitting the gym, going for a hike, or just out on the town, the Casio G-Shock GA-2100-4AJF is the perfect companion. Don't miss out on this Japanese Domestic Market (JDM) watch model that combines style, durability, and advanced features. Elevate your watch collection today with the Casio G-Shock GA-2100-4AJF!

Specifications

Item Model Number GA-2100-4AJF
Department Mens
Batteries 1 Lithium Metal batteries required. (included)
Date First Available August 1, 2019
Manufacturer Casio
Best Sellers Rank #4,734 in Men's Wrist Watches
Customer Reviews 4.6 4.6 out of 5 stars
Brand Or Seller Or Collection Name G-Shock
Model Number GA-2100-4AJF
Part Number GA-2100-4AJF
Item Shape Octagonal
Dial Window Material Type Sapphire
Display Type Analog-Digital
Clasp Buckle
Case Material Resin
Case Diameter 45.4 Millimeters
Case Thickness 11.8 Millimeters
Band Material Resin
Band Width 25
Band Color Red
Dial Color Black
Special Features Water Resistant
Item Weight 1.8 Ounces
Movement Quartz
Water Resistance Depth 10 ATM, 100 meters, 330 feet
Brand Casio
Package Dimensions 4.61 x 3.7 x 3.19 inches; 1.8 ounces
Model Year 2019
Product Warranty For warranty information about this product, please click here

Price history

Reviews

No user reviews yet. Write first.


Best Deals


Invicta Men's 0929 Anatomic Subaqua Watch
Invicta
Invicta Men's 0929 Anatomic Subaqua Watch
(10)
Plastic
$78.89
Casio Pop LF-30W Series - LED Illuminator, World Time, and Stopwatch
Casio
Casio Pop LF-30W Series - LED Illuminator, World Time, and Stopwatch
(37)
Resin | Mens
$39.95 $33.98
Invicta Men's 22785 Speedway Analog Display Quartz Black Watch
Invicta
Invicta Men's 22785 Speedway Analog Display Quartz Black Watch
(850)
Stainless Steel | Mens
$129.90 $53.88
Timex Women's Simone Multifunction 38mm Watch - White Strap, White Dial, Gold-Tone Case
Timex
Timex Women's Simone Multifunction 38mm Watch - White Strap, White Dial, Gold-Tone Case
(17)
Womens | Brass
$45.78
TIMEX Men's Easy Reader 38mm Watch - Vegas Golden Knights Edition
Timex
TIMEX Men's Easy Reader 38mm Watch - Vegas Golden Knights Edition
(15)
Brass
$79.00 $42.73
Timex Men's Easy Reader 35mm Day-Date Watch – Gold-Tone Case
Timex
Timex Men's Easy Reader 35mm Day-Date Watch – Gold-Tone Case
(20387)
Mens | Brass
$71.00 $56.80
Timex Tribute Men's NHL Citation 42mm Watch – Toronto Maple Leafs
Timex
Timex Tribute Men's NHL Citation 42mm Watch – Toronto Maple Leafs
(67)
Brass
$89.00 $65.86
Timex Women's Easy Reader 25mm Watch - Gold-Tone Expansion Band White Dial
Timex
Timex Women's Easy Reader 25mm Watch - Gold-Tone Expansion Band White Dial
(5004)
Womens | Brass
$73.00 $49.92
Invicta Men's 15862 S1 Rally Analog Display Japanese Automatic Black Watch
Invicta
Invicta Men's 15862 S1 Rally Analog Display Japanese Automatic Black Watch
(664)
Stainless Steel
$129.99 $79.90
Tissot Unisex Everytime 34mm Quartz Watch
Tissot
Tissot Unisex Everytime 34mm Quartz Watch
(2)
Stainless Steel | Unisex
$315.00
Timex Women's Easy Reader 30mm Watch - Black Strap White Dial Silver-Tone Case
Timex
Timex Women's Easy Reader 30mm Watch - Black Strap White Dial Silver-Tone Case
(109)
Womens | Brass
$67.00 $42.50
Timex Women's Modern Easy Reader 32mm Watch – Gold-Tone Case
Timex
Timex Women's Modern Easy Reader 32mm Watch – Gold-Tone Case
(2076)
Brass
$63.00 $44.70
Seiko Women's Automatic Watch Stainless Steel with Multicolour Strap - SYMG42K1
Seiko
Seiko Women's Automatic Watch Stainless Steel with Multicolour Strap - SYMG42K1
(1822)
Stainless Steel
$151.20
Timex Men's Expedition Scout 40mm Watch – Gray Case Blue Dial
Timex
Timex Men's Expedition Scout 40mm Watch – Gray Case Blue Dial
(27417)
Brass
$49.99
Timex Tribute Men's Collegiate Gamer 42mm Watch – Navy Midshipmen
Timex
Timex Tribute Men's Collegiate Gamer 42mm Watch – Navy Midshipmen
(0)
Mens | Brass
$69.95 $55.20
Invicta Men's Speedway 42mm Stainless Steel Quartz Watch - Two Tone
Invicta
Invicta Men's Speedway 42mm Stainless Steel Quartz Watch - Two Tone
(39)
Stainless Steel | Mens
$60.49
Invicta Men's 0076 Pro Diver Collection Chronograph Black Ion-Plated Stainless Steel Watch
Invicta
Invicta Men's 0076 Pro Diver Collection Chronograph Black Ion-Plated Stainless Steel Watch
(23439)
Stainless Steel | Mens
$53.88
Invicta Women's Specialty Quartz Watch, Rose Gold - Model 29417
Invicta
Invicta Women's Specialty Quartz Watch, Rose Gold - Model 29417
(45)
Stainless Steel | Womens
$89.90 $59.27
Timex Men's Easy Reader 38mm Watch - Clemson Tigers with Expansion Band
Timex
Timex Men's Easy Reader 38mm Watch - Clemson Tigers with Expansion Band
(5)
Brass
$79.00 $47.80
Timex Men's Waterbury 41 mm Watch, Black Leather Strap
Timex
Timex Men's Waterbury 41 mm Watch, Black Leather Strap
(1)
Mens
$139.97
Best price $129.99
See offers