Casio MTG-A2101121 Series – Detailed Specifications

1. Basic Information

• Model: MTG-B2000 Series

• Brand: Casio G-Shock

• Category: Premium Tough Solar Bluetooth Watch

2. Case & Dimensions

• Case Size (L × W × H): 55.1 × 49.8 × 15.9 mm

• Weight: 156 g

• Case Material: Carbon / Stainless Steel

• Bezel Material: Stainless Steel with Carbon Core Guard Structure

3. Band & Clasp

• Band Type: Solid Band

• Material: Stainless Steel / Resin Composite Band

• Additional Band: Interchangeable red resin band included

• Clasp: One-touch 3-fold Clasp

• Surface Treatment: Black Ion Plated Band & Case

4. Durability & Resistance

• Construction: TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant)

• Core Structure: Carbon Core Guard

• Glass: Spherical Sapphire Crystal with Anti-Reflective Coating

• Crown: Screw Lock Crown

• Water Resistance: 200-metre water resistance

5. Time Adjustment & Connectivity

• Bluetooth Connectivity: Yes (Connects to smartphone for auto time adjustment)

• Radio-Controlled Timekeeping (Multi Band 6): Receives calibration signals from:

  • Germany (DCF77) – 77.5 kHz

  • England (MSF) – 60.0 kHz

  • USA (WWVB) – 60.0 kHz

  • Japan (JJY) – 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)

  • China (BPC) – 68.5 kHz

• Time Calibration Reception:

  • Automatic Reception: Up to six times a day (five times for China)

  • Manual Reception: Available

  • Self-Check: Displays last received calibration

6. Power Supply & Battery Life

• Power Source: Tough Solar (Solar-powered)

• Battery Life:

  • Normal Use: Approx. 5 months without light exposure

  • Power Saving Mode: Approx. 29 months when stored in total darkness

7. Smartphone Link / App Features

• Compatible App: CASIO WATCHES

• Features via App:

  • Auto Time Adjustment

  • Easy Watch Settings

  • World Time for 300+ Cities

  • Watch Status Display (Self Check)

  • Phone Finder

8. Watch Features & Functions

A. World Time

• Dual Time Display

• 27 Time Zones

• Auto Summer Time (DST) Switching

• Home City Time Swapping

B. Stopwatch

• Measuring Unit: 1 second

• Measuring Capacity: 23 hours, 59 minutes, 59 seconds

• Mode: Elapsed Time

C. Countdown Timer

• Unit: 1 second

• Range: 1 minute to 24 hours (1-minute increments)

D. Alarm & Hourly Time Signal

• Daily Alarm: Yes

• Hourly Signal: Yes

E. Lighting

• LED Light: Super Illuminator (White)

• Afterglow: Yes

F. Calendar & Date

• Full Auto-Calendar: Up to 2099

• Date Display: Yes

• Day Indicator: Yes

G. Accuracy & Energy Saving Features

• Accuracy: ±15 seconds per month (without calibration or mobile link)

• Power Saving Mode: Hands stop moving when the watch is left in darkness

H. Additional Features

• Hand Shift Feature: Hands move away for an unobstructed view of the dial

• Regular Timekeeping:

  • Analog Display: 3 Hands (Hour, Minute, Second – moves every 5 seconds)

  • 3 Sub-dials: Dual time (Hour/Minute), Dual time 24-hour, Day

9. Special Features & Design

• Interchangeable Bands:

  • Comes with an easy-to-switch black layered-metal composite band

  • Includes a dashing red resin band for a bold look

• Ion-Plated Finish: Fully black ion-plated case, bezel, and band

• Cutting-Edge Metal Timepiece Technology: MT-G series' advanced metal fusion design

This watch combines toughness with luxury, offering solar power, Bluetooth connectivity, and multi-band radio calibration for extreme accuracy. Whether you prefer the elegant composite metal band or the sporty red resin strap, the MTG-B2000 is designed to stand out while enduring the harshest conditions.