From G-Shock, the watch brand that is constantly setting new standards for timekeeping toughness, comes the limited edition MR-G Akazonae themed analogue model; the MRG-G1000B-1A4. Akazonae was a special military unit during Japan's Warring States Period (Sengoku Jidai), whose armor and weapons were a distinctively uniform red colour, which is said to have allowed commanders of elite troops to flaunt the valor of their soldiers. The MRG-G1000B-1A4 features all of the toughness that has long been associated with the MR-G name, decorated with distinctive red colouring for the engraved lettering of the bezel, city codes, and various different components of the face. The GPS hybrid radio-controlled solar function combines Casio's own solar power charging system, positioning using the Global Positioning System (GPS), and reception of time calibration signals around the world. The strength and toughness represented by the Akazonae image has been incorporated into this model by using traditional Japanese crimson, and expresses the intrepid toughness embodied in the colour.