Since the 1930, shock protections were used for the thin and delicate pivots of the balance wheel, and sometimes, even escape wheels and even further wheels are protected and get an improved oil supply.
In the archive, the following types are yet known:
Antichoc S65
cap jewel: lose
bearing jewel: in chuck
Antichoc 102
cap jewel: lose
bearing jewel: in chuck
Bidlingmaier (Bishock)
cap jewel: in chuck
bearing jewel: in chuck
Brac-Shock Typ B
cap jewel: lose
bearing jewel: in chuck
China (example)
cap jewel: in chuck
bearing jewel: in chuck
Cymaflex I
cap jewel: lose
bearing jewel: in chuck
Cymaflex II
cap jewel: lose
bearing jewel: in chuck
Cymaflex dial side
cap jewel: lose
bearing jewel: in chuck
Diashock
cap jewel: lose
bearing jewel: in chuck
Duroswing
cap jewel: lose
bearing jewel: in chuck
Elastor-Förster
cap jewel: lose
bearing jewel: in chuck
Eterna (U)
cap jewel: in chuck
bearing jewel: in spring
Farr
cap jewel: lose
bearing jewel: lose
Favre-Leuba
cap jewel: lose
bearing jewel: in chuck
Hercules / Supershock HPP
cap jewel: lose
bearing jewel: in chuck
Incabloc (alt)
cap jewel: lose
bearing jewel: in chuck
Incabloc (alt) dial side
cap jewel:
bearing jewel:
Incabloc
cap jewel: lose
bearing jewel: in chuck
Junghans
cap jewel: lose
bearing jewel: fixed / with chuck
KIF Protechoc
cap jewel: lose
bearing jewel:
(with metal chuck)
KIF Trior
cap jewel: lose
bearing jewel: in chuck
KIF Ultraflex
cap jewel: lose
bearing jewel: in chuck
M.T.Antichoc
cap jewel: lose
bearing jewel: lose
Monorex
cap jewel: with bearing and spring
bearing jewel: in chuck
Monorex new
cap jewel: with bearing and spring
bearing jewel: in chuck
Neuto-Shock
cap jewel: lose
bearing jewel: lose
Novochoc
cap jewel: lose
bearing jewel: in chuck
Novodiac
cap jewel: lose
bearing jewel: in chuck
Palierfix (Rego)
cap jewel:
bearing jewel:
Parachoc
cap jewel: with bearing and spring
bearing jewel: in spring
Poljot Kirowskie
cap jewel: lose
bearing jewel: in chuck
RUFA-Anti-Shock
cap jewel: lose
bearing jewel: in chuck
Rufasuper
cap jewel: lose
bearing jewel: in chuck
Ruby-Shock
cap jewel: with spring
bearing jewel: in chuck
Shockproof (HPP)
cap jewel: lose
bearing jewel: fixed
Shockproof (HPP), dial side
cap jewel: lose
bearing jewel: fixed
Super Shock Resist
cap jewel: with spring
bearing jewel: in spring
VUFE / Uwersi
cap jewel: lose
bearing jewel: lose