Casio G-Shock Classic Watch GM-2100G-1A9ER

Introducing the Casio G-Shock GM-2100G-1A9ER, a sophisticated interpretation of the legendary GA-2100 that elevates the iconic octagonal design with a brilliant golden finish. The resin case features a warm golden tone that dramatically contrasts with the matte black dial and black technical textile strap. Golden hands with luminescent treatment stand out against the black background, while the small analog subdial at 9 o'clock shows seconds and the compact digital display at 3 provides additional information. Golden rectangular indices at the main positions complete a design that fuses luxury and toughness.

Inside beats the Casio 5611 module, an analog-digital caliber that combines three hands for main time reading with a multifunctional digital display. The analog seconds subdial offers precise reading, while the digital screen shows day of the week, date and world time zone. Key functions include world time with 31 time zones (48 cities), 1/100-second stopwatch with 24-hour capacity, 5 daily alarms, countdown timer, automatic calendar until 2099, and selectable 12/24-hour format.

Part of the G-Shock Classic collection, born in 1983 from engineer Kikuo Ibe's dream to create an unbreakable watch. After 200 prototypes and drop tests from 10 meters high, a legend was born that has sold over 100 million units. The GM-2100G represents the contemporary evolution of this philosophy, maintaining extreme toughness while embracing a more refined and urban aesthetic.

Shopping at TicTacArea.com means buying from real jewelers with over 30 years of industry experience, serving as official distributors, online since 1999. Every product is genuine, factory-new, and delivered with its official presentation box, documentation, and international warranty.

Technical Specifications

Reference: GM-2100G-1A9ER
Module/Caliber: 5611
Type: Analog-Digital
Movement: Quartz
Water Resistance: 200 meters
Shock Resistance: Yes, Carbon Core Guard structure
Case Material: Resin
Case Color: Golden
Strap Material: Textile
Strap Color: Black
Dial Color: Black
Crystal: Mineral
Light: LED
Diameter: 44.4 x 49.3 mm
Thickness: 11.8 mm
Weight: 72.0 g
Functions: World time, stopwatch, countdown, 5 alarms, auto calendar, 12/24h format
Battery: SR726W x 2
Made for: Men

User manual

Download the manual in English (PDF)