A premium, full-metal G-SHOCK MR-G timepiece for the sea — the titanium armor-clad, airtight MRG-BF1000 with ISO 200-meter water resistance joins the FROGMAN family of full-fledged diver’s watches. This MR-G diver’s watch takes the unique asymmetrical design, screw-lock case back and distinctive diving frog character — which were so popular when FROGMAN came out back in 1993 — to a whole new level. Originally produced in resin, the complex design has now been remade in titanium, with each component crafted separately and polished meticulously for an entirely new feel of high-end quality. The watch is built with an intricate combination of over 70 exterior components, including an O-ring waterproof seal to deliver outstanding FROGMAN water resistance and special buffers to strengthen the shock-resistant structure — all while maintaining the beauty of form the MR-G line is known for.

Welcome the MRG-B5000, based on the first-ever G-SHOCK and crafted with the state-of-the-art metals and meticulous finishes that are the hallmark of the MR-G flagship line. These breakthrough timepieces are a study in metal craftsmanship. The case and bezel are made of Ti64-based super-hard titanium alloy, while the band is made of another special titanium alloy, DAT55G, that is both three times harder than pure titanium and highly workable. The bezel top is crafted in COBARION®, a cobalt-chrome alloy four times harder than pure titanium. The bezel alone consists of 25 different components, each individually polished for a stunning detailed texture. The state-of-the-art Multi-guard Structure incorporates flat springs and silicone buffers to the multi-component bezel, ensuring outstanding shock absorption to protect the dedicated MR-G module with gold-plated retainer plate.

Introducing the stunning MRG-B2000, a proud addition to the MR-G line, the pinnacle of the G-SHOCK brand. The meticulous attention to construction, function, materials, and finishes that is the hallmark of MR-G delivers the strength and beauty that has always been at the heart of Japanese craftsmanship. Cut to evoke the look of a Japanese fan or folding screen, the dial’s perimeter features a simple, yet gorgeous texture. The gentle curvature of a sword blade is echoed in index marks with a grind-mark finish that offers the beautiful edging and curves that only Yamagata Casio’s nano-processing technology can produce.

Introducing the stunning MRG-B2000, a proud addition to the MR-G line, the pinnacle of the G-SHOCK brand. The meticulous attention to construction, function, materials, and finishes that is the hallmark of MR-G delivers the strength and beauty that has always been at the heart of Japanese craftsmanship. Cut to evoke the look of a Japanese fan or folding screen, the dial’s perimeter features a simple, yet gorgeous texture. The gentle curvature of a sword blade is echoed in index marks with a grind-mark finish that offers the beautiful edging and curves that only Yamagata Casio’s nano-processing technology can produce. Yet function would not be outdone by style in this one-of-a-kind watch, which features radio-controlled calibration and smartphone pairing via Bluetooth® to delight even the most practical owner. The exclusive MR-G module even has a gold-plated retainer plate to reduce electrical resistance. As if this weren’t enough, Sallaz polishing, double-hardening, and a sapphire crystal with anti-reflective coating ensure that every detail of this timepiece exudes power and excellence.

Experience the seamless blend of technological brilliance and stylish design with the G-SHOCK MRG-B1000B-1A. This sophisticated timepiece, defined by its simplicity and intelligence, is a product of G-SHOCK's MR-G flagship lineup, merging unparalleled toughness with a refined design. The MRG-B1000B-1A is a study in resilience and sophistication, with its full-metal, shock-resistant design in an understated black hue, made even more functional with Bluetooth® connectivity for easy pairing with your smartphone. The watch's MULTIBAND 6 technology automatically adjusts the time across six global time zones, while the Tough Solar system ensures reliable solar-powered timekeeping, drawing energy from even the most minimal light sources. Utilizing innovative miniaturization technology, the MRG-B1000B-1A packs high performance into a structure that comfortably contours your wrist. The minimalist face, encased in a robust metal frame, echoes the shaded gradations of black ink wash paintings, infusing practicality with an air of refined fashion. Designed to exemplify the theme of "Simplicity & Intelligence," the G-SHOCK MRG-B1000B-1A strikes an impeccable balance between rugged durability and sophisticated design. Crafted with a premium metal material and finished in an elegant black color, it's not just a watch—it's a statement of timeless style and performance.

Case size (L× W× H)
55.4 × 51.3 × 19.4 mm
Weight
92 g
Case and bezel material
Carbon / Resin　
Band
Resin Band
Construction
Shock Resistant
Mud Resistant
Carbon Core Guard structure
Water resistance
200-meter water resistance
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life
Approx. battery life: 2 years on CR2025
Sensor feature
Step count using a 3-axis acceleration sensor: 0 to 999,999 step count display range
Power Saving: Auto sensor sleep state entry after fixed period of non-activity
Altimeter
Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.)
Measuring unit: 1 m (5 ft.)
Hand indication graph of altitude differential
Manual memory measurements (up to 14 records, each including altitude, date, time)
Auto log data (High/low altitudes, cumulative ascent and descent)
Others: Relative altitude readings (±100 m /±1000 m), selectable measurement interval: 5 seconds or 2 minutes (1 second for first 3 minutes only)
*Changeover between meters (m) and feet (ft)
Barometer
Measuring range: 260 to 1,100 hPa (7.65 to 32.45 inHg)
Measuring unit: 1 hPa (0.05 inHg)
Hand indication of pressure differential (±10 hPa)
Atmospheric pressure tendency graph (last 20 hours or last 56 hours)
Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure)
The atmospheric pressure tendency graph can show the last 20 minutes or last 56 minutes of measurements.
The hand indication of pressure differential shows values in units of ±0.1 hPa.
*Changeover between hPa and inHg
Digital compass
Measures and displays direction as one of 16 points
Measuring range: 0 to 359°
Measuring unit: 1°
60 seconds continuous measurement
Hand indication of north
Magnetic declination correction
Direction calibration (2-point calibration, figure eight calibration, auto calibration)
Thermometer
Measuring range: -10 to 60℃ (14 to 140℉)
Measuring unit: 0.1℃ (0.2℉)
*Changeover between Celsius (℃) and Fahrenheit (℉)