Parechoc Ltd. of Le Sentier is a maker of watch anti-shock and regulation devices as well as regulation and timing equipment. It is famous for the KIF, Triovis, and similar mechanisms.
KIF 210 (370) - Friction-fit “three leaf clover” since at least 1951
Duofix - Since 1957
, a combined solution for hole and end stones, hinged lyre shape