Special Features:

Movement size 85 detent escapement 15 jewels 56 hr running time cap. Key winding, key correct time reset; for mtg in gimbal bx carry case, w/carry case w/batteries spark suppressor circuit and relay; rate for mean solar time; movement case brass, lacquered fin, glass crystal; 12 hr dial nonluminous grad, 4 hands black ea hr hand sweep, min hand sweep, sec hand eccentric, wind indicator hand eccentric; int contacts make on ea sec exc on the 59th sec of ea min

Properties:

An instrument which measures time to the accuracy of a chronometer, and which includes precision internal contacts for opening and/or closing an external electric circuit. The intervals and frequency of opening and closing are preset during manufacture by the program wheel(s) design. If mounted, case may contain batteries, spark supressor circuit and relay. See also timer, sequential; timer, interval and intervalometer (as modified).