It’s so interesting how a brand that was founded on a philosophy of durability and practicality can still make watches so beautiful. G-SHOCK just dropped two new MR-G models that dig deep into Japanese metalworking tradition, and they’re not messing around with the details.
Two Paths to the Same Philosophy
The MRG-B2000 “Kurogane-Iro” series takes its name from the specific blue-green color that iron develops when heated for samurai armor. This shade is recreated by Casio through deep-layer hardening and green DLC coating on titanium components.
The collection offers two interpretations of this theme, both priced at $3,300. The MRG-B2000BG-3A goes full-metal with a titanium bracelet that shares the same DLC treatment as the titanium case, creating a cohesive aesthetic from crown to clasp. Gold ion-plated screws and crown provide subtle warmth against the near-black green finish, which is inspired by traditional armor embellishments.
On the other hand, the MRG-B2000RG-3A opts for a Dura Soft fluoro-rubber strap that features a tortoiseshell pattern called bishamon kikko. This geometric motif is inspired by the armor of warrior deity Bishamonten and is a Japanese symbol of longevity and protection. You’ll also notice the recrystallized titanium effect on the bezel, with a crystalline pattern that evokes the nie crystals in properly tempered Japanese sword blades.
Both models feature cases that are 49.8mm in diameter and 16.9mm in thickness. These are large specs, but like all G-SHOCKs, these watches should wear very well on the wrist.
Where Tradition Meets Technology
On the dial, hour markers are shaped like gentle sword curves and use Yamagata Casio’s nano-processing technology to achieve sharp edges and precise grind-mark finishes like a literal blade. The outer dial edge resembles folding fans or traditional screens, while the base features that aforementioned tortoiseshell pattern.
Since this is G-SHOCK, you can easily assume that both models pack serious technical capability. Radio-controlled timekeeping via Multiband 6, Bluetooth connectivity for smartphone integration, and Tough Solar charging are all included. To reduce electrical resistance, a gold-plated retainer plate has been included in the MR-G module. The watch also gives you features like its world timer with twenty-seven time zones, 200m of water resistance, and the requisite G-SHOCK shock protection.
Veterans at the Heritage Play
This isn’t G-SHOCK’s first venture into Japanese cultural themes, even with kurogane-iro methods. Back in 2021, for the 25th anniversary of the MR-G line, the brand came out with an $8,000 version of the timepiece. This time, however, prices will be at a more reasonable $3,000. Whether you choose the full-metal or rubber-strap variant, you’re getting a piece that honors its inspiration while delivering thoroughly modern capability.
Spec Sheet
Model Names: MRG-B2000BG-3A (titanium bracelet), MRG-B2000RG-3A (rubber strap)
Case Material: Titanium with green DLC coating
Case Size: 49.8mm
Lug-to-Lug: 54.7mm
Case Thickness: 16.9mm
Movement: Module 5652 (solar-powered quartz)
Water Resistance: 200m
Crystal: AR-coated sapphire
Features: Bluetooth connectivity, Multiband 6 radio control, LED illumination, shock resistance
Limited Edition: No
Made In: Japan (Yamagata Casio facility)
Pricing & Availability
Both the MRG-B2000BG-3A and MRG-B2000RG-3A retail for $3,300 and are available now through select jewelers, G-SHOCK’s website, and the brand’s Soho flagship store.
Recap
G-SHOCK MRG-B2000BG-3A & MRG-B2000RG-3A “Kurogane-Iro” Series
Inspired by the Japanese metalworking tradition of “Kurogane-Iro,” G-SHOCK made a couple of $3,300 MR-G models with titanium that looks like ancient samurai swords.
