Casio - G-SHOCK Metal Covered Analog Digital Quartz GM-2100-1A Mens Watch World Time Stopwatch Alarm - Gray
About this product
The Casio G‑Shock GM‑2100‑1A blends rugged design with contemporary flair, featuring a polished stainless‑steel bezel paired with a resilient resin case and strap for a lightweight yet durable wrist presence. Designed for performance, it offers shock resistance, 200‑meter water resistance, an analog‑digital display, world time across 31 time zones, stopwatch and countdown timer functions, and a double‑LED Super Illuminator for easy readability in low light. With a slim profile at roughly 49.3 × 44.4 × 11.8 mm and weighing about 72g, it delivers premium materials and advanced functionality while maintaining wearable comfort.
Metal‑Covered Shock Structure
Built with a stainless‑steel bezel and a glass‑fibre‑reinforced resin inner case, this watch delivers superior resistance to impact and deformation for rugged performance.
200‑Meter Water Resistance
Designed to handle recreational swimming and surface water sports, this model offers reliable water protection rated up to 200 meters, making it both sporty and dependable.
Dual Time & World Time Modes
Track time across different regions effortlessly with support for 31 time zones (48 cities + UTC) and daylight saving adjustment options—ideal for travel or global schedules.
Double LED Illumination
Equipped with Super Illuminator double LEDs for the analog face and digital display, with selectable illumination duration and after‑glow, enabling clear readability in low‑light conditions.
Slim & Lightweight Design
Measuring about 49.3 × 44.4 × 11.8 mm and weighing approximately 72 g, this analog‑digital hybrid maintains modern functionality while offering a comfortable fit on the wrist.
- BrandCasioModel NumberGM-2100-1AProduct NameG-SHOCK Metal Covered Analog Digital Quartz GM-2100-1A Mens Watch World Time Stopwatch AlarmColorGrayCase Thickness12 millimetersCase Size44mm
Reviews
Rating 5 out of 5 stars with 1 review
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products
The Casio G‑Shock GM‑2100‑1A blends rugged design with contemporary flair, featuring a polished stainless‑steel bezel paired with a resilient resin case and strap for a lightweight yet durable wrist presence. Designed for performance, it offers shock resistance, 200‑meter water resistance, an analog‑digital display, world time across 31 time zones, stopwatch and countdown timer functions, and a double‑LED Super Illuminator for easy readability in low light. With a slim profile at roughly 49.3 × 44.4 × 11.8 mm and weighing about 72g, it delivers premium materials and advanced functionality while maintaining wearable comfort.
The Casio Edifice EF-527D-1AV is a sophisticated chronograph watch that seamlessly blends functionality with a sleek design. Featuring a black dial adorned with three sub-dials, it offers precise timekeeping and stopwatch capabilities. The watch is equipped with a rotating slide rule bezel, enabling quick calculations for professionals and enthusiasts alike. Constructed with a stainless steel case and bracelet, it ensures durability and a polished appearance. With a 100-meter water resistance rating, the EF-527D-1AV is suitable for swimming and snorkeling activities. The mineral glass protects the watch face from scratches, maintaining its clarity over time. Luminous hands and markers enhance readability in low-light conditions, making it a reliable companion for various settings.
The Carbon Core Guard structure takes the famous G-Shock toughness to a whole new level. The fine resin incorporates carbon fiber to make a tough yet light weight material with the kind of rigidity far more superior to that of usual resin. It is now more resistant to damages and deformation, eliminating the need for external button guards. Everything about it reeks of a bold toughness.
The G-SHOCK GA-B2100-1A1 is a popular analog-digital watch known for its iconic octagonal "CasiOak" design, combining classic G-SHOCK toughness with modern functionality. It's a sleek, all-black model that offers both style and practicality.
Specs
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