A Roskopf, pin-lever, or pin-pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, ch
Dollar watch
…mass-produced timepieces intended to be as inexpensive as possible. Features of dollar watches were their simple, rugged design, movement (usually with a pin-pallet escapement, although sometimes with duplex escapements) which has either no jewels or just one jewel, width of about eighteen size (2 inches (51 mm)), and sale…
Jewelled pin pallet escapement in watch, showing escape teeth profile