Using promo code “DNHAM599” brings this Hamilton Khaki Navy Frogman down to $599 — that’s $796 less than you’d pay elsewhere. It ships for free too. Its design traces back to the watches issued to US Navy underwater demolition teams during World War II, a history later tied to the 1951 film The Frogman. Inside, the H-10 automatic movement runs on an 80-hour power reserve, so it keeps ticking for well over three days off the wrist. Deal ends October 31. Buy Now at Ashford