A premium, full-metal G-SHOCK MR-G timepiece for the sea — the titanium armor-clad, airtight MRGBF1000 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.
For enhanced strength, we’ve developed a protective structure with fluoro rubber buffers installed between the multiple bezel parts. This structure features face-guarding functionality that helps to absorb shocks from the front and the sides, as well as protecting the crystal.
The dedicated MR-G module features a gold-plated retainer plate. The screw-lock case back is fit with sapphire crystal finished in vibrant blue vapor deposition and engraved with the iconic FROGMAN diving frog character.
Dura Soft, a durable and comfortable fluoro rubber, is used for the band, and Ti64 titanium alloy for the buckle and band loop. Simply remove the side pins while pressing the buttons on the lugs’ undersides to quickly and easily swap out the band.
More than just handsome, this timepiece provides superior functionality, as well. Equipped with Bluetooth®, the hour and minute hands overlap and work in unison to form a single hand when in diving mode, making the time spent underwater (minutes) easy and intuitive to see and delivering high visibility. Download the dedicated app to pair with your smartphone and easily display tide data for more than 3,000 locations around the world. Check dive logs on your smartphone and get more details on data tracked by your watch.

Case size (L× W× H)

56 × 49.7 × 18.6 mm

Weight

132 g

Case and bezel material

Titanium

Band

Dura Soft Fluoro Rubber band

Construction

Shock Resistant
Magnetic Resistant

Water resistance

ISO 200 meters Water Resistance

Time adjustment

Radio-controlled Watch; Multi band 6
Bluetooth: Connects to a smartphone and automatically adjusts the time

Power supply and battery life

Tough Solar (Solar powered)

Smartphone Link feature

Mobile link (Automatic connection, wireless linking using Bluetooth®)

Apps

CASIO WATCHES

App connectivity feature

Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Diving log
Tide graph setting (approximately 3,300 global points)
Watch status display
Self check
Phone finder
Premium Production Line certificate

Glass

Sapphire crystal with anti-reflective coating
Spherical Glass

Crown

Screw Lock Crown

Back plate

Screw Lock Back

Surface treatment

Deep Layer Hardening DLC Coating

Compatible band size

150 to 220 mm

Other

Neobrite

Diving feature

Diving modeDive time: 1 second increments, up to 1:59’59Surface time measurement: up to 24 hoursLog data: up to 30 records

World time

Dual time27 time zones, Home time swapping, auto summer time (DST) switching

Tide graph

Tide graph (tide level for specific date and time)

Stopwatch

1-second stopwatchMeasuring capacity: 23:59’59

Timer

Countdown timerMeasuring unit: 1 secondCountdown range: 24 hoursCountdown start time setting range: 1 minute to 24 hours (1-second increments)

Alarm/hourly time signal

Daily alarm

Light

LED light (Super Illuminator)Afterglow

Light color

LED:White

Calendar

Full auto-calendar (to year 2099)

Hand home position correction feature

The auto hand home position correction

Energy saving feature

Power Saving (hands stop to save power when the watch is left in the dark)

Run time

Approx. battery operating time:5 months on rechargeable battery (operation period with normal use without exposure to light after charge)29 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

Accuracy

Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)

Other features

Hand shift feature (Hands move out of the way to provide an unobstructed view of indial)
Regular timekeeping:Analog: 3 hands (hour, minute (hand moves every 5 seconds), second), 3 dials (dual time hour and minute, dual time 24 hour, day)
Date display
Day indicator

Time adjustment details

Time Calibration SignalsStation name: DCF77 (Mainflingen, Germany)Frequency: 77.5 kHzStation name: MSF (Anthorn, England)Frequency: 60.0 kHzStation name: WWVB (Fort Collins, United States)Frequency: 60.0 kHzStation name: JJY (Fukushima, Fukuoka/Saga, Japan)Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)Station name: BPC (Shangqiu City, Henan Province, China)Frequency: 68.5 kHz
Time calibration signal receptionAuto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)*5 times a day for the Chinese calibration signalManual receiveThe latest signal reception results