To assist in the celebration of the 77th anniversary of its parent brand, Yoshida & Co., Porter have enlisted the help of Hamilton to produce this limited edition watch. Hamilton has provided a modified Khaki Field Auto Watch that Porter has attached to a rather unique looking leather and Velcro strap that has been crafted in the same orange color that adorns the inside of the popular Tanker series. If this is too over-the-top for you, the watch will also ship with a plain black calf-leather strap. To honor the 77 years, only 770 pieces will be produced, with each one individually numbered. Retail price has been set at ¥77,700 JPY (approximately $1015 USD). The Porter x Hamilton Khaki Field Auto will be available in March.