Shougeki-Maru (-Gai-) Limited Edition MRG-B2000SG-1ADR

€6.600,00 EUR

40th Anniversary | Stock limited to 700 pieces worldwide

Join the celebration of G-SHOCK's 40th anniversary with luxury style and quality with a limited edition watch from the iconic MR-G line of G-SHOCK watches that pays homage to the art of craftsmanship.

Dedicated to traditional Japanese craftsmanship techniques passed down over centuries, this watch celebrates the pride and aesthetics of samurai warriors with a design that incorporates the Shougeki-Maru: Gai, the Kabuto helmet that Casio created for the MR-G line.

The rim captures the front emblem of this very special helmet, with a tiger design and granular relief engraved by goldsmith KOBAYASHI Masao. Each limited edition watch is a unique piece, hand-engraved by a master craftsman.

The Durasoft fluororubber strap in pure white recalls the look of the white ito odoshi*1 used in the manufacture of traditional Japanese armor. A deep layer hardening process and dark silver AIP® is applied to the recrystallized titanium case to express the color of the Shougeki-Maru: Gai helmet. An engraved metal plaque commemorating G-SHOCK's 40th anniversary on the side of the case at the 10 o'clock position adds a touch of bold style, as do the four lab-created rubies*2 on the bezel, which symbolize the 40th anniversary of G-SHOCK. years.

More than just a tribute to tradition, this watch also offers superior modern functionality. Equipped with Bluetooth® for smartphone connectivity, the watch adjusts to radio wave time signals for accurate timekeeping and includes convenient functions with original Casio technology.

This very special, 40th anniversary-worthy MR-G celebrates Japan's traditional craftsmanship and modern technologies, all in a unique samurai-inspired timepiece.

*1 White Ito odoshi: The white thread that joins the Shikoro armor plates together. Pure white symbolizes the strong determination of a warrior who remains true to his own convictions, immune to others (like white not dyed by other colors).
*2 The heads of the screws that secure the bezel are embedded with rubies that were created in the laboratory by Kyocera, a material selected under commitment to ethical considerations. Since ancient times, rubies have been known as the "stone of victory" and were believed to carry the energies of triumph over hardship and victory.


Basic information

  • Box size (L × W × H)

  • Weight

    138 g
  • Case and bezel material

  • Bracelet

    Durasoft fluororubber strap; One-touch folding closure
  • Construction

    Antimagnetic; Shock resistant
  • Waterproof

    20 bar water resistance
  • Time adjustment

    Radio controlled clock; Multi Band 6
  • Power supply and battery life

    Tough Solar (solar powered)

Smartphone/app connection features

  • Smartphone connection functionality

    Mobile connection (automatic connection, wireless connection via Bluetooth®)
  • applications

  • Application connection functionality

    Automatic time adjustment; Easy clock setting; World time for approximately 300 cities; Clock status display; Self-check; Phone locator; High quality production line certificate


  • Glass

    Sapphire crystal with anti-reflective coating
  • Crown

    Screw-lock crown
  • Surface treatment

    Deep layer hardening + AIP® case (with ion coating)Deep layer hardening + DLC rim
  • Compatible bracelet size

    145 to 215 mm
  • Others


Watch features

  • World time

    Two times 27 time zones, home city/world city time change, automatic daylight saving time (DST) change
  • Stopwatch

    1 second stopwatch Measuring capacity: 23:59'59'' Measuring modes: Elapsed time
  • Timer

    Countdown timer Unit of measurement: 1 second Countdown interval: 24 hours Countdown start time setting range: 1 minute to 24 hours (1 minute increments)
  • Alarm signal/hourly

    Daily alarm
  • Light

    LED light (Super illuminator) Afterglow
  • Light color

    LED: White
  • Calendar

    Complete automatic calendar (up to the year 2099)
  • Hand position correction functionality

    Automatic correction of the initial position of the hands
  • Energy saving feature

    Energy saving (hands stop to save energy when the watch is in the dark)
  • Operating time

    Approx. battery operating time: 5 months with rechargeable battery (operating period with normal use without exposure to light after full charge) 26 months with rechargeable battery (operating period when stored in complete darkness with the energy saving function on after full charging)
  • Precision

    Accuracy: ±15 seconds per month (without signal calibration and mobile connection function)
  • Other features

    Regular time indication: Analog: 3 hands (hours, minutes [the hand moves every 5 seconds], seconds), 3 dials (two-time hours and minutes, 24-hour two-time, day)Date indicator; day indicator
  • Time adjustment details

    Time Calibration Signals Station Name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station Name: MSF (Anthorn, England) Frequency: 60.0 kHz Station Name: WWVB (Fort Collins, United States) Frequency : 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan) Frequency: 40.0 kHz (Fukushima)/60.0 kHz (Fukuoka/Saga) Station name: BPC (Shangqiu city, Henan, China) Frequency: 68.5 kHzTime calibration signal reception Automatic reception up to six* times per day (remaining automatic receptions are canceled once one is successful) *5 times per day for Chinese calibration signal Manual reception Latest signal reception results

Operating guide