Description
Casio G-SHOCK GRAVITYMASTER Men Watch - Black | GR-B300EC-1ADR
Casio G-SHOCK GRAVITYMASTER Men Watch - Black | GR-B300EC-1ADR combines aviation-inspired styling with vivid emergency-color accents and advanced everyday functionality. It features Tough Solar charging, Bluetooth® Smartphone Link, Carbon Core Guard construction, dual time, flight-log recording, Super Illuminator lighting, and 200-meter water resistance.
Casio G-SHOCK GRAVITYMASTER Men Watch - Black | GR-B300EC-1ADR is part of the MASTER OF G – AIR Emergency Colors collection. Its solid black exterior is highlighted with vivid red, orange, and yellow accents inspired by rescue equipment and professional safety gear, creating a high-contrast design that improves readability while delivering a bold aviation-inspired appearance.
Inspired by next-generation aircraft, the watch features a seamless exterior, a wide three-dimensional dial, and a Carbon Core Guard structure made with lightweight carbon fiber-reinforced resin. The case and band incorporate bio-based resin, while a black ion-plated bezel and screw-lock crown add durability and a premium finish.
Tough Solar technology converts natural and artificial light into power. Bluetooth® connectivity links the watch to the CASIO WATCHES app for automatic time adjustment, easy settings, access to approximately 300 world-time cities, Flight Log recording, and Phone Finder. Dual Time simultaneously displays the time in two cities for convenient travel and aviation use.
The GR-B300EC-1ADR also includes a 1-second stopwatch, 24-hour countdown timer, daily alarm, Super Illuminator LED light, Power Saving, battery-level indicator, and 200-meter water resistance. Its analog display and large dimensional indexes provide clear visibility in demanding environments.
- MASTER OF G – AIR GRAVITYMASTER design
- Emergency Colors black finish
- Red, orange, and yellow dial accents
- Aircraft-inspired seamless exterior
- Carbon Core Guard structure
- Shock Resistant construction
- Tough Solar charging
- Bluetooth® Smartphone Link
- CASIO WATCHES app compatibility
- Automatic time adjustment
- Flight Log function
- Approximately 300 app-based world-time cities
- Dual Time display
- Black ion-plated bezel
- Screw-lock crown
- Bio-based resin case and band
- Super Illuminator LED light
- 200-meter water resistance
| Specification | Details |
|---|---|
| Brand | Casio |
| Series | G-SHOCK MASTER OF G – AIR |
| Model | GR-B300EC-1ADR |
| Collection | GRAVITYMASTER Emergency Colors |
| Color | Black with Red, Orange and Yellow Accents |
| Product Type | Men’s Watch |
| Display | Analog |
| Movement | Tough Solar Quartz |
| Case & Bezel Material | Bio-Based Carbon / Bio-Based Resin / Stainless Steel |
| Structure | Carbon Core Guard |
| Construction | Shock Resistant |
| Bezel Treatment | Black Ion Plating |
| Band Material | Bio-Based Resin |
| Glass | Mineral Glass |
| Crown | Screw-Lock Crown |
| Water Resistance | 200 m / 20 Bar |
| Power Supply | Tough Solar |
| Case Size | 59 × 54.7 × 15.7 mm |
| Weight | 71 g |
| Compatible Wrist Size | 145–215 mm |
| Connectivity | Bluetooth |
| Smartphone Link | Mobile Link via Bluetooth |
| Compatible App | CASIO WATCHES |
| Automatic Time Adjustment | Yes |
| Easy Watch Setting | Yes |
| App World Time | Approx. 300 Cities |
| Flight Log | Yes |
| Phone Finder | Yes |
| World Time | Dual Time with Home-City Time Swapping |
| Stopwatch | 1-Second |
| Stopwatch Capacity | Up to 23 Hours, 59 Minutes and 59 Seconds |
| Stopwatch Modes | Elapsed Time and Split Time |
| Countdown Timer | Up to 24 Hours |
| Timer Setting Range | 1 Minute to 24 Hours |
| Alarm | Daily Alarm |
| Light | Super Illuminator LED |
| Afterglow | Yes |
| LED Color | White |
| Neobrite | Yes |
| Date Display | Yes |
| Day Indicator | Yes |
| Power Saving | Yes |
| Battery Level Indicator | Yes |
| Battery Operating Time | Approx. 5 Months Without Light Exposure |
| Power-Save Operating Time | Approx. 18 Months After Full Charge |
| Calendar | Full Auto Calendar to 2099 |
| Accuracy | ±15 Seconds per Month Without Mobile Link |
| Analog Timekeeping | 3 Hands and 3 Inset Dials |
Additional Information
GENDER: |
Men |
WATCH TYPE: |
Connected / Bluetooth |
BAND MATERIAL: |
Bio-Based Resin |
BAND TYPE: |
Standard Strap |