This is an official collaboration model between Casio G-SHOCK and Nintendo's classic Super Mario Bros., reference DW-5600SMB. Based on the iconic DW-5600 square watch, it features Mario's signature red and yellow color scheme, pixel art graphics on the strap, and a custom dial and case back with game elements and copyright markings. The watch retains all standard G-SHOCK functions including 200m water resistance and shock resistance. It is a used piece showing signs of wear but in good working condition.