The all-new mechanical timepiece introduces power visualization with on-dial indicator to the original field watch design Hamilton introduces a groundbreaking addition to the beloved Khaki Field collection with the Power Reserve Mechanical 40mm. The watch is the first Hamilton Khaki Field to feature a power reserve indicator directly on the dial. This innovative timepiece honors the heritage design and essential functionality of the Khaki family, the original field watch, while introducing modern features and the latest in watchmaking technology.