Casio GBM-2100A-1A2ER: The Perfect Blend of Style and Functionality

The Casio GBM-2100A-1A2ER is a standout timepiece that effortlessly merges rugged durability with sleek, modern aesthetics. As part of Casio’s iconic G-Shock series, this watch delivers the toughness the brand is known for while introducing a refined metal-clad design that transitions seamlessly from casual outings to professional settings.

Key Features

1. Striking Metal-Clad Design

The GBM-2100A-1A2ER features a meticulously crafted octagonal bezel with a polished silver finish, giving it a premium look. The blue dial adds a touch of sophistication, making it a versatile accessory for any occasion. The environmentally friendly bio-based resin strap ensures comfort and durability while aligning with sustainable practices.

2. Smartphone Connectivity via Bluetooth®

One of the standout features of this watch is its Bluetooth® Smartphone Link capability. By connecting to the Casio Watches app, users can easily adjust settings, update time zones, and even locate their phone with the handy “Find My Phone” function. This seamless integration enhances convenience for tech-savvy users.

3. Tough Solar Power System

Powered by Tough Solar technology, the watch harnesses both natural and artificial light to keep running without frequent battery replacements. Once fully charged, it can last for months, even in low-light conditions, ensuring reliability for daily wear.

4. Robust Functionality

Beyond its stylish exterior, the GBM-2100A-1A2ER is packed with practical features:

• World Time (39 cities) – Ideal for frequent travelers.
• Stopwatch (1/100-second precision) – Perfect for sports and fitness tracking.
• Countdown Timer – Useful for workouts and daily tasks.
• Day-Date Display – Keeps you organized with clear readability.

5. Durable Construction

True to the G-Shock legacy, this watch is built to withstand daily wear and tear. With 200-meter water resistance, it’s suitable for swimming and snorkeling, while its shock-resistant structure ensures longevity even in demanding environments.

Customer Impressions

Many users have praised the comfort and lightweight feel of the watch, with one reviewer stating:
“I sometimes forget I’m wearing it because it’s so light—yet it looks premium and stylish.”

Another buyer highlighted its versatility:
“This watch works just as well with a suit as it does with casual wear. The blue dial adds a nice pop of color without being too flashy.”

The Bluetooth functionality has also been a hit:
“The phone finder feature is a lifesaver—I use it almost daily!”

Final Verdict

The Casio GBM-2100A-1A2ER successfully bridges the gap between rugged durability and refined elegance. Whether you’re looking for a reliable everyday watch or a stylish companion for travel and work, this model delivers on all fronts. Its combination of solar power, Bluetooth connectivity, and robust build makes it a smart investment for watch enthusiasts and casual wearers alike.

For those seeking a high-performance yet fashionable timepiece, the GBM-2100A-1A2ER is an excellent choice.

ASIN: B0D9YVZG88

Casio Men's Analogue-Digital Quartz Watch with Plastic Strap GBM-2100A-1A2ER

Now retrieving the rating.

£190.00 £180.08 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Metal-clad daring meets sophisticated gleam in a GBM-2100 that delivers Smartphone Link via Bluetooth and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel. This Analogue-Digital watch has a calendar... read more

Casio - Mens Watch LCW-M100TSE-1A2ER

£260.82 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

This fashionable and classic watch matches any outfit at any occasion, it adds style to your life -The watch has a calendar function: day-date, Radio Controlled, solar powered, stop watch, Timer, Alarm High quality 21 cm length and 18 mm width silver... read more

Casio G-Shock Bluetooth Analog-Digital Turquoise Blue Dial Men GBM-2100A-1A2DR (G1582), Black, strap

Now retrieving the rating.

£233.00 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Dial Color: Turquoise Blue , Strap Color: Black Strap Material: Bio-Based Resin , Clasp Type: Tang Buckle Case Material: Resin(Bio-Based) / Stainless steel , Water Resistant

Casio Men Analogue-Digital Quarz Watch with Plastic Strap GA-110CD-1A2ER

Now retrieving the rating.

£95.00 £90.13 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Sporty and elegant watch suitable for all occasions. This Analogue-Digital watch has a calendar function: Day-Date , Stop Watch , Countdown , Worldtime , Alarm and Light This high quality watch is an incredible eye-catching Women watch The Analogue w... read more

Casio Men's Analogue-Digital Quartz Watch with Plastic Strap GA-100-1A2ER

£94.99 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

This sporty and clasical watch is perfect for every occasion! -This watch has a calendar function: Day-Date, Worldtime, Stop Watch, Timer, Alarm, Light High quality 21 cm length, 22 mm wide Black Plastic strap with a Buckle Case diameter: 50 mm, Case... read more

Casio Mens Analog, Digital Quartz Watch with Resin Strap GA-140GB-1A2ER

Now retrieving the rating.

£131.29 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Case - Case Material: Resine - Case Shape: Round - Case Colour: Black - Crystal: Mineral crystal

G-Shock Casio GMAP2100-7A Analog-Digital Bio Based Style Classic White Watch, White

Now retrieving the rating.

£126.25 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Analog-Digital Band width: 5.0 Watch movement type: Japanese Quartz Case diameter: 42.0 Item shape: Octagonal Case thickness: 11.0 Power source type: Battery Powered Clasp type: Buckle Closure type: Buckle Embellishment feature: Crystal

Casio Men's Analogue-Digital Quartz Watch with Kunststoff Strap GBM-2100-1AER

Now retrieving the rating.

5% Off £195.14 £173.45 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

Metal-clad daring meets sophisticated gleam in a GBM-2100 that delivers Smartphone Link via Bluetooth and Tough Solar charging system, all in a meticulously finished metal design with iconic octagonal bezel. This Analogue-Digital watch has a calendar... read more

CASIO STANDARD DIGITAL WATCH WITH LED-LIGHT F-91W-1JF

4% Off £13.50 £12.75 (as of September 30, 2025 22:35 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

F-91W-1JF

LN LENQIN Mens Watches Ladies Watches Analog Quartz Watch for Men Women 30M Waterproof Watch Fashion Casual Men's Wristwatches with Date Silicone Band Unisex

Now retrieving the rating.

19% Off £15.99 £12.99 (as of September 30, 2025 11:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)

⌚Watches for Men: This stylish mens watch is very suitablefor for indoor, outdoor, sport and daily fashion wear. The total length of the men's watch: 9.84inch / 250mm. Band width: 0.78inch / 20mm , watch case diameter: 1.57inch / 40mm. Wearing Range:... read more