Casio G-Shock 45mm Unisex Watch – Volt Yellow Monochrome, Carbon Core Guard & Octagonal Bez...

• Case Diameter: 45.4mm (Thickness: 11.8mm)

• Colour: Monochromatic Volt Yellow (Neon)

• Material: Carbon-Reinforced Bio-based Resin / Mineral Glass

• Water Resistance Rating: 20 ATM (200 Metres)

Ignite your street-savvy style with the Casio G-Shock GA-2100-9A9ER. Part of the 2024 "Tone-on-Tone" collection, this 45.4mm timepiece features a striking volt yellow monochromatic dial set within G-Shock's slimmest octagonal case. Engineered with Carbon Core Guard technology and a precision Module 5611 quartz engine, it offers a massive suite of features including world time, 5 daily alarms, and a Double LED Super Illuminator. Crafted from eco-friendly bio-based resin and water-resistant to 200 metres, it is the ultimate fusion of modern "CasiOak" aesthetic and legendary toughness.

WR: 20 ATM Case: 45,5 mm Gender: Unisex Case Material: Carbon & Resin Strap Material: Resin Movement: Quartz Functions: Multifunction Glass: Mineral Product Type: Wristwatch Packaging: Official Box

G-Shock 2100 Series: The Zenith of Monochromatic Design

The Casio G-Shock GA-2100-9A9ER is a high-impact 45mm timepiece that redefines the standards for urban fashion horology. Fusing a Carbon Core Guard case with a groundbreaking volt yellow monochromatic dial, this watch is a masterclass in modern styling and legendary toughness.

Visual Audit: A Study in Monochrome Depth

Our visual audit confirms a sophisticated palette of neon yellow, designed for the modern individual who values technical depth and a "street-savvy" profile.

• Monochromatic Volt Yellow Dial: A multi-layered face utilising subtly different shades of yellow to highlight indices, hands, and sub-dials.
• Octagonal "CasiOak" Bezel: An iconic geometry inherited from the first-generation G-SHOCK, reimagined in a slim, modern form.
• Neobrite Luminous Hands: High-visibility hands that provide a long-term glow in the dark after only a short exposure to light.

Material Verification: Sustainable Carbon Toughness

The GA-2100-9A9ER is constructed using G-Shock's proprietary Carbon Core Guard structure and bio-based resins to ensure lifelong durability and comfort.

• Carbon-Reinforced Resin: A high-strength, lightweight material that allows for a slimmer 11.8mm case profile without sacrificing shock resistance.
• Bio-Based Resin Band: Produced from renewable organic resources to help reduce environmental impact while maintaining skin-safe comfort.
• Mineral Glass Protection: A toughened crystal face recessed beneath the bezel to prevent scratches and impact damage.

Mechanical Functionality: The Legend of Module 5611

Beneath the neon dial lies the high-torque digital-analog module 5611, ensuring accurate timekeeping and a massive suite of timing utilities.

• Double LED Super Illuminator: High-intensity white lighting for both the analog dial and digital display for perfect visibility in the dark.
• 20 ATM Water Resistance: Engineered for life in the water, including professional swimming, snorkelling, and diving (200 metres).
• Hand Shift Feature: A technical utility that moves the analog hands out of the way for a clear view of digital stopwatch or alarm data.

Technical Specifications

The G-Shock GA-2100-9A9ER is delivered in an official G-Shock presentation tin and includes a 12-month international manufacturer's warranty.