MTG-B4000B-1A2ER Watch

The Watch

The G-Shock MTG-B4000B-1A2ER represents the cutting edge of technology fused with unrivaled toughness. Designed for the modern man, this timepiece features a Dual Core Guard structure built from a sophisticated blend of carbon fiber and stainless steel, delivering outstanding shock resistance. The round case, with a diameter of 45.30 mm and a thickness of 14.40 mm, gives the watch a bold yet refined presence. The carbon and stainless steel construction ensures excellent resistance to daily wear. Finished with blue ion plating, this model strikes a perfect balance between contemporary style and sophistication. At a controlled weight of 112 grams, it remains comfortable for all-day wear. The designers collaborated with AI to analyze and refine the design, incorporating 3D prototypes optimized against strict durability and aesthetic criteria. This fusion of science and design delivers a final product that masterfully balances elegance with performance.

The Dial

The dial is a masterpiece of engineering and design. Featuring a sunray finish on a black background, it subtly catches and reflects light for a striking contrast against the raised large indices. These indices, along with luminescent hands, use Neobrite technology for easy reading even in complete darkness. The dial is protected by an anti-reflective sapphire crystal, scratch-resistant and designed for maximum visual clarity. The watch incorporates several complications, including a date window, chronograph, and second time zone, catering to precision-focused enthusiasts. The combination of materials adds visual depth to the dial, giving it a unique dynamic at every glance. One look at the Super Illuminator reveals how brilliantly the lighting is engineered, ensuring maximum legibility in any condition. The subdial at 8 o'clock displays the day of the week and the power reserve indicator, along with multiple modes: standard time (STD), stopwatch (ST), timer (TR), and alarm (AL). At 3 o'clock, a second time zone in 12-hour format is shown, with a small indicator specifying AM (A) or PM (P). The counter at 10 o'clock tracks the chronograph's 24-hour display. Nearby, two markers indicate radio signal reception (RC) and phone connection (C). At the bottom, at 6 o'clock, (No) and (YES) show whether automatic time sync and smartphone connection were successful. Finally, (ON) and (OFF) indicators, also visible at 3 o'clock, confirm the alarm status. All these elements are indicated by the seconds hand.

The Functions

Bluetooth® Smart

The watch features Bluetooth® Low Energy technology, enabling energy-efficient data transfer at the press of a button. It connects wirelessly to your smartphone via Bluetooth®, unlocking a wide range of useful functions.

Smartphone Time

Super Illuminator

With the press of a button, the display lights up in a bold, on-trend color.

Shock and vibration resistance

The MT-G Dual Core Guard structure shields the watch from impacts, protecting against shocks, centrifugal force, and vibrations through Triple G Resist technology.

Solar Operation

This timepiece runs on solar power. Its solar cells provide a self-sufficient, eco-friendly energy source, with any surplus energy stored in a rechargeable battery.

Radio-controlled signal reception (EU, USA, Japan, China)

Whether in Europe, North America, Japan, or the more remote regions of Canada, Central America, and China - once the watch is set to local time, the corresponding signal is picked up and displays the exact time wherever you are. In many countries, it also automatically adjusts for daylight saving and standard time.

World Time Function

This function displays the time across 29 time zones and major cities around the world.

Second Time Zone Display

Between the 2 o'clock and 5 o'clock indices.

Date and Day of the Week Display

The date and day of the week are displayed between 4 and 5 o'clock and on the subdial at 8 o'clock, respectively.

Stopwatch - 24 Hours

Elapsed times are measured with split-second precision. The watch can time events up to 24 hours.

Countdown Timers - 1/1 min - 24 Hours: For those who live by precision: countdown timers remind you of important or recurring events with an audible alert at the set date and time. Time can be programmed in minutes, up to 24 hours in advance - perfect for daily medication reminders or repeated training intervals.

Daily Alarm

The daily alarm reminds you of recurring events by sounding a beep at your set time.

Automatic Hand Setting

The automatic hand-setting function checks and corrects the original position of the hands every hour as needed - compensating, for example, for the effects of shocks or magnetic interference.

Crown Button Lock

Prevents accidental shifting of the crown button to another operating mode.

Smart Access Technology

Makes navigating multifunction watches effortless. Simply pull and rotate the crown for intuitive control of all functions.

Phone Finder

Misplaced your smartphone? Just press a button on your watch and your phone rings an alarm.

Automatic Calendar

The calendar updates automatically based on the year.

The Movement

At the heart of this model is its Casio solar movement, a testament to Japanese excellence. This innovative mechanism draws energy from both natural and artificial light, delivering continuous power without ever needing a battery change. It features Bluetooth connected and radio-controlled capabilities, ensuring precise synchronization and automatic time updates across different time zones. The watch also offers additional complications including an alarm, stopwatch, and GMT function for tracking a second time zone. The movement includes a power reserve indicator to keep you informed of remaining energy, as well as a built-in 24-hour countdown timer. The reliable performance of this solar movement seamlessly combines sustainable power with modern convenience for an outstanding wearing experience.

The Strap

The strap is engineered for maximum comfort and durability. Crafted from black resin, it offers extreme resistance to tough conditions while remaining comfortable on the wrist. Its pin buckle clasp, also finished in blue, blends seamlessly with the rest of the watch for a refined, cohesive look. The custom-fit lug design ensures a perfect fit and a smooth transition between case and strap, enhancing both appearance and functionality. This type of strap is prized for its lightweight flexibility, making the watch perfectly suited for everyday wear and sports activities. The smart integration of connection pieces within the frame further improves stability and protects against damage from shocks and vibrations.

Water Resistance

Built to take on the elements, the G-Shock MTG-B4000B-1A2ER delivers outstanding water resistance up to 20 atmospheres - keeping it protected to a depth of 200 meters, making it ideal for water sports like scuba diving and surfing. Every detail, from the screw-back case to the screw-down crown, is engineered to lock out moisture and ensure long-term reliability. Count on this watch to hold up even in the harshest environments. Its hybrid carbon-steel structure further reinforces its ability to withstand extreme pressure while maintaining its bold, forward-thinking aesthetic.