In March 2022, Casio unveiled its first MR-G square G-Shocks. The MR-G collection is home to Casio's most premium G-Shocks and these models often feature exotic materials and hand-finished components. And now, joining them is the third MR-G square G-Shock, the MRG-B5000BA-1 Ao-zumi. Readers who understand Japanese will immediately see the connection. For those who don't, "Ao-zumi" translates to blue-black..