Casio has launched the G-Shock MRG-B2000KT-3A in Japan, a new limited-edition model inspired by traditional Japanese sword craftsmanship. Only 800 units will be sold worldwide, each engraved by master metalworker Masao Kobayashi.

The design takes cues from the tsuba, the guard between a sword’s blade and handle, known for both protection and decoration. The bezel features a phoenix engraving created using the Shishi-Aibori hammering technique. The phoenix, a long-standing symbol of peace and prosperity, is hand-carved with a hammer and chisel, making each piece unique. The bezel is made of titanium with a green DLC coating that mimics the “kuroganeiro” or black iron color seen in forged steel. Four emeralds, representing wisdom and spiritual strength, are set into the bezel screws for a touch of contrast and depth.


The case carries a unique pattern inspired by “nie,” the crystallized edge pattern seen on tempered swords. It is made by recrystallizing pure titanium and finished with brown AIP coating for hardness and a copper tone. A metal plate marked “2025 LIMITED” is set on the side at 9 o’clock. The dial ring has a gradient finish that fades from red to orange, while the arrow feather design on the dial references the hamaya charm used to ward off evil. These details are created using precision machining at Yamagata Casio.


The dark green Durasoft fluorine rubber strap is durable, soft to the touch, and resistant to discoloration and wear. It features a Bishamon tortoiseshell pattern, a Japanese symbol of strength. The titanium clasp is deep-hardened and treated with the same brown AIP finish for added durability.
The MRG-B2000KT-3A offers 20-bar water resistance, Bluetooth connectivity for automatic time correction, solar power charging, and multi-band radio control compatible with Japan, North America, Europe, and China. Other functions include a Super Illuminator LED light, world time for 300 cities, stopwatch, timer, alarm, and a power-saving feature.
The watch measures 54.7 x 49.8 x 16.9 mm, weighs 138 g, and uses a sapphire crystal with anti-reflective coating. The case and bezel are made from titanium, and the crown uses a screw-lock structure. It keeps an average monthly accuracy of ±15 seconds when not connected to radio or Bluetooth signals.
Pricing & availability
Casio’s G-Shock MRG-B2000KT-3A will go on sale in Japan in November 2025 for ¥935,000 (about $6,073). Only 800 serial-numbered pieces will be produced worldwide, and Casio is expected to release the model in other regions in the coming weeks. Each watch will come with its serial number and a special edition package.
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