Adanac USAF Navigator 1986 watch was designed by the Marathon Watch Company of Canada and produced by Gallet in Switzerland. It has bi-directional rotating bezel 0-11 marked, which makes it look like a hybrid of diver's and pilot's watches, call it simply a navigator's watch. Screw-down crown, fixed bars for a 20mm black nylon band. Water resistant 660 feet, stainless steel case, made by Gallet, measures 43.8mm across the crown. It fits a swiss made quartz movement. There is a separate latch (which you can open with a coin) for replacing batteries. These Adanac's (Canada spelled backwards) is in overall mint condition, battery has been recently replaced.