New Casio G-Shock MRG-B5000SA-2 leaks with blue sapphire inserts and possible AIP coating

In a fresh new scoop, Casio appears to be preparing at least three new MR-G models to celebrate the sub-line's 30th anniversary, and the second of them has just leaked. Casioblog, the Russian enthusiast publication that has a strong track record, has published the first image of the MRG-B5000SA-2 — a variant of the iconic square MR-G that gets blue accents and what could be a new surface treatment.
As one would expect, the most eye-catching detail in the render is a pair of blue inserts at the top and bottom of the case, between the bezel segments. Casioblog speculates these are either sapphire crystal elements or titanium designer accents. The "SA" suffix in the model name could likely be a direct reference to whichever material it turns out to be. Blue circular accents around the buttons complement the theme nicely.
The overall case tone also has a deep, lustrous blue-grey quality to it — the source suggests that it could be Arc Ion Plating (AIP) — a hardening treatment similar to DLC coating, used in aerospace applications and associated with traditional Japanese metalworking.
If the leaks hold weight, the MRG-B5000SA-2 would be the second MR-G 30th anniversary release after the MRG-BF1000EB, a high-end Frogman variant Casio we saw earlier this year. A third model based on the MRG-B2000 series is also reportedly in development.
The MRG-B5000 platform uses a Ti64 titanium case, a DAT55G titanium band rated at three times the hardness of pure titanium, and a Cobarion cobalt-chrome bezel alloy four times harder than pure titanium. The SA-2 is expected to secure the standard MR-G feature set: Tough Solar, Multi-Band 6, Bluetooth, and 200-metre water resistance, with sapphire crystal and pricing north of $5,000. An announcement is expected within the next two months.







