Rare and now discontinued. Hamilton Khaki Navy Frogman men's watch, Black Dial Automatic Ref. H777160 Black dial Diver Sub 200 m Excellent condition (used). Period: circa 1990s. Valjoux 7750 self-winding movement. Titanium case, 43 mm excluding crown - 50 mm including crown. Screw-in crown (see photo). Spectacular black dial (see photos). Luminescent hour markers. Date display between 9 and 10 o'clock. Second markers. Minute markers. GMT scale appears around the inner ring. Sub-dials. Two: 12 Hours and 30 Minutes Sub-dials Functions Hours, Minutes, Seconds, Date, Chronograph, GMT Sapphire crystal Screw-down case back. Original Hamilton titanium strap. Strap length: 28 cm. No box or papers. The watch is used but like new, worn and in perfect working order. Insured shipment with tracking.