Casio G-Shock Full Metal GM-B2100D-1A

Tough Solar & Bluetooth | Premium Octagonal “CasiOak” | Made in Japan

The Casio G-Shock GM-B2100D-1A is the first all-metal model in the acclaimed 2100 series. A direct heir to the octagonal spirit of the original 1983 DW-5000C, this engineering marvel features a solid case, bezel, and band crafted entirely from high-strength stainless steel. A premium analog-digital watch that offers a surprisingly flat and comfortable profile on the wrist, without compromising G-SHOCK’s legendary Shock Resist structure.

🌟 Key Features and Premium Distinctions

• Made in Japan: Assembled to the highest quality standards on Casio’s Japanese production lines.
• Full Metal Construction: Solid stainless steel case, octagonal bezel, and strap with a screw-down back cover to ensure maximum water resistance and durability.
• Tough Solar Technology: High-efficiency, eco-friendly solar power that charges the watch using any light source, eliminating the need for battery replacement.
• Smart Connectivity: Mobile Link via Bluetooth® for precise time synchronization and function management from your smartphone.

📊 Technical Specifications

Feature Detail

Case Dimensions $49.8 \times 44.4 \times 12.8$ mm (Ultra-thin and sleek profile)

Weight 165 grams (Substantial and solid on the wrist)

Case and Bezel Material High-strength stainless steel

Strap Solid stainless steel strap with one-touch triple-fold clasp

Case Back Screw-down case back for a professional seal

Crystal Hardened mineral glass with anti-reflective coating

Water Resistance 200 meters (20 ATM / ISO Divers standard)

Durability: Shock Resist structure resistant to extreme impacts

📱 Connectivity: Bluetooth & Mobile Link

Wireless connection to the official CASIO WATCHES app for access to advanced features:

• Automatic Time Adjustment: Precise synchronization of local time 4 times a day.
• Extended World Time: Quick setup for approximately 300 global cities.
• Time and Location Function: Records geographic coordinates and the exact time with just a press of a button on the watch.
• Reminders and Alerts: Set calendar alerts that appear directly on the digital display.
• Phone Finder: Mobile phone locator via audible alert.

⚙️ Advanced Watchmaking Functions

• Smart Hybrid Dial: Dual analog hands (moving every 20 seconds) and a multifunction sub-dial (mode and battery level indicator) combined with a high-definition digital display.
• Hand Hiding Function: The hands automatically move out of the way to leave the digital display completely unobstructed when using the watch’s functions.
• High-End World Time: 38 time zones (38 cities + UTC), city name display, and automatic daylight saving time (DST) adjustment.
• Stopwatch and Timer: Stopwatch up to 24 hours (1/100-second accuracy for the first 60 minutes) with lap and split-time measurement.

• Countdown timer adjustable from 1 second to 60 minutes.
• Alarms: 5 independent daily alarms and optional full-hour chime.
• Dual LED Illumination (Super Illuminator): Independent high-intensity white illumination for both the analog dial and the digital display, with automatic activation and adjustable duration (1.5 or 3 seconds). Hands treated with Neobrite luminescent technology.
• Efficient Power Management: Battery level indicator on the dial. Includes Power Saving function (the display turns off after a period in darkness).
• Exceptional Battery Life (Tough Solar):
  • Up to 7 months of normal daily use without light exposure after a full charge.
  • Up to 18 months stored in total darkness with power-saving mode activated.

Accuracy Note: When not connected to a smartphone, the quartz module maintains excellent standalone factory accuracy of $\pm15$ seconds per month. The full automatic calendar is programmed through the year 2099, and the days of the week are configurable in 6 languages.