Back in the 1960s, Hamilton was one of several companies to build field watches for the US Department of Defense, under the spec MIL-W-3818B. That same design is reborn in the Hamilton Khaki Field Mechanical Watch. Although the brushed stainless steel case has increased in size from 34 to 38mm, it still retains a utilitarian dial with Roman numerals, markers, and hands that are also perfect reproductions. It's powered by a manually-wound mechanical movement, offers 5 ATM of water resistance, and has vintage-toned lume. Finished with a green NATO strap with brown leather trim, and available worldwide beginning in January.