A cool $80,000 ain’t nothin’ to a G-Shock. That’s the price of the newest addition to the Casio sub-brand’s top-tier MR-G line of rugged, drop-resistant digital watches featuring hand-engraved metalwork, fine Samurai-inspired motifs, and examples of master craftsmanship. But with a steep five-figure ask that puts it in the price range of Patek Philippe and Audemars Piguet models, the MRGD5000 Blue Sapphire is distinguished as the most expensive G-Shock ever.
It’s also the first G-Shock that employs blue sapphire crystal to achieve shock resistance, instead of the typical rubber-and-resin construction used for standard G-Shocks. Ingots—chunks of the raw material—were made into blue sapphire crystal pieces over the course of several months. From these, only the sections with ideal color concentration and transparency are meticulously selected to ensure the ideal blue hue appears in the final product.
The proprietary MR-G Multi-Guard Structure—developed by Casio through the analysis of force transmitted to sapphire crystal upon impact—employs a bezel and case composed of multiple separate components that are assembled without the screws, reducing the chance of cracking in sapphire components. The structure draws inspiration from the traditional Japanese construction process of kigumi, which eschews nails and screws for perfectly matched interlocking joints. Blue sapphire crystal is also set into the screw-lock case back, which is engraved with an individual serial number marking each of the 20 limited-edition timepieces.
Meanwhile, the “MR-G” and “SHOCK RESIST” marks, as well as other lettering, are rendered in pure 24K gold. The face’s stainless-steel brick pattern pays homage to the design of the original G-Shock, released in 1983. The timekeeping module incorporates Gallium Tough Solar—an upgraded version of G-Shock’s standard Tough Solar charging system—which makes charging more efficient. It’s attached to a model-exclusive Dura Soft rubber strap that echoes the face’s brick pattern. Finely detailed raised blocks—each set at its own unique angle—change in shade as the light moves across the strap.
If you’re not ready to buy a watch that costs as much as a new BMW M2, G-Shock is also offering the MRGB5000SA, featuring facet-cut sapphire crystals set on the case, for $6,600, and the blue sapphire stone-accented GMWB5000SB for $770. Limited to just 20 examples, the G-Shock MRGD5000 Blue Sapphire arrives in December 2026. The MRGB5000SA and GMWB5000SB go on sale in November 2026.