Hamilton FAPD 5101
From Chronopedia
Hamilton FAPD 5101
A rarely seen larger cousin of the MIL-W-46374 field watch is the FAPD 5101 made by Hamilton. This watch, first issued in late 1969 or early 1970, was produced specifically for use by navigators in the U.S. Air Force, and thus features a slightly larger 36mm parkerized case and the 17-jewel, center-seconds Hamilton caliber 684. The 684, which also featured a fine regulating screw and anti-magnetic dust cover, was developed specially for the FAPD 5101 and appears in no other military or civilian wristwatch model.
