G-SHOCK is celebrating the MR-G collection’s 30th anniversary, dating back to 1996, with the MRG-B2100HR-1A, a limited edition of just 800 pieces.
The new watch builds on the octagonal-bezel MRG-B2100, but gives it a distinctive new character through platinum leaf and Structural Colour technology, which creates an iridescent play of colour.
Its design brings together “kigumi”—the traditional Japanese art of joining wood without nails—and the centuries-old craft of applying metal leaf. This meeting of handcraft and advanced manufacturing sets this new reference apart.
Platinum leaf meets the MRG-B2100.
At the heart of the design is a three-dimensional lattice dial inspired by “kigumi”. Platinum leaf, processed into a fine metallic powder, is applied within the lattice to create a richly textured surface.
Hiroto Rakusho, a Kyoto-born artist recognised as both a master of traditional Japanese arts and crafts and a Kyoto Master Craftsman, was entrusted with the work.
Born in 1962, Rakusho learned the art of metal leaf from his father before founding his own brand in 2002 and exploring new applications for the traditional technique.
For G-SHOCK, he created an original design inspired by “haruka”, the Japanese concept of “eternity,” and applied the platinum leaf to each MRG-B2100-series dial himself.
The leaf’s varied placement creates subtle shifts in brightness and tone, adding depth and ensuring no two examples look exactly alike.
Structural Colour shifts with the light
The bezel and bracelet bring a second distinctive element to the design. G-SHOCK has used Structural Colour technology to evoke the changing sheen of metal leaf.
An ultrashort–pulse laser works the surfaces at the micrometre scale, producing colours that shift with the viewing angle. The effect isn’t simply a coloured coating laid over the metal; it comes from the surface’s optical structure itself.
The result sets the dial’s hand-applied finish against an exceptionally precise treatment of the watch’s exterior components.
A 27-piece bezel
The case construction reflects the MR-G line’s meticulous approach. Its bezel comprises 27 individual parts, each polished before precise assembly.
The bezel and bracelet are crafted from COBARION and DAT55G, respectively—exceptionally hard alloys chosen for their combination of refined metallic finishes and durability.
COBARION is a cobalt-chromium alloy produced exclusively by Japanese specialist Eiwa. DAT55G is a sub-brand of DAT, a registered trademark of Daido Steel.
The MR-G platform’s main specs
Beyond the treatments, the watch offers everything you expect from an MR-G. It is solar–powered, receives radio time signals through Multiband 6, and pairs with the CASIO app via Bluetooth.
Features also include automatic hand-position correction, a Super Illuminator, and day and date displays. The watch features an antireflective–coated sapphire crystal and is water-resistant to 20 bar.
Limited to 800 pieces, priced at €7,500
The G-SHOCK MRG-B2100HR-1A goes on sale in November 2026 through the G-SHOCK website, the G-SHOCK Store Milano, and select retailers. Just 800 pieces will be made, with a suggested retail price of €7,500.
That price places the watch among the most exclusive G–SHOCK models. It reflects a construction that combines speciality materials, a multi-part case, and hands-on craftsmanship with the technical foundations of the MR-G collection.
Initial thoughts
The MRG-B2100HR is, without a doubt, among the MR-G collection’s most exciting watches: advanced manufacturing meets Japan’s centuries-old craft traditions to create what may be the most exclusive G-SHOCK ever.
That contrast—between Japan’s rich artisanal heritage and its contemporary industrial prowess—makes these MR-G watches so compelling to collectors and devoted G-SHOCK fans alike. They are, unmistakably, made for enthusiasts.
(Photo credit: G-SHOCK)
