The Casio G-Shock GA-2100-4A Red, famously known as the “CasiOak,” combines minimalist design with legendary G-Shock durability. Featuring a sleek octagonal bezel, ultra-slim profile, and clean all-white finish, this model delivers modern street style backed by serious toughness.

Built with Carbon Core Guard technology, the GA-2100-4A offers superior shock resistance in a lightweight case design. With 200m water resistance, analogue-digital functionality, and a high-contrast dial layout, it’s engineered for everyday wear, travel, and active lifestyles.

If you want iconic G-Shock toughness in a clean, versatile colourway — this is the one.

Key Specifications & Features

Movement & Functions

Movement: Quartz Analogue-Digital
Functions:

• World Time
• Stopwatch
• Countdown Timer
• 5 Daily Alarms
• Full Auto Calendar
• 12/24 Hour Format

Case Structure: Carbon Core Guard
Shock Resistant: Yes (G-Shock standard)
Water Resistance: 200 metres (20 ATM)
Case Material: Carbon-reinforced resin
Design: Slim, lightweight octagonal profile

Dial Colour: Red
Display Type: Analogue-Digital
Backlight: LED light for night visibility
High-legibility hands and digital display

Strap Material: Resin band
Fit: Lightweight and flexible for daily wear
Style: Clean all-white modern aesthetic

Why Choose the GA-2100-4A?

✔ Iconic octagonal “CasiOak” design
✔ Ultra-slim, lightweight G-Shock profile
✔ Carbon Core Guard shock protection
✔ 200m water resistance
✔ Clean white colourway for versatile styling
✔ One of the most popular G-Shock models worldwide

Shipping & Returns

🚚 Free shipping on all orders above $150.

🔄 Shop with confidence — covered by our 15-day peace-of-mind return policy.

For full details, please refer to the “Shipping & Returns” section on our website.