This limited edition G-SHOCK GM-B2100 celebrates the brand's 40th anniversary through a collaboration with Japanese bag brand PORTER. It features a full metal analog design with an aged finish, inspired by the original DW-5000's octagonal form.

• Collaboration with PORTER-Yoshida & Co.
• Full metal analog GM-B2100 model
• Aged finish achieved through ion plating and partial removal of black coating on bezel and band
• Octagonal bezel design
• Dial accents in red, blue, and gold, referencing the original G-SHOCK release