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However, it was in 1933 that an engineer named Hans Marti took out a patent on a system of anti-shock bearings based on a modified version of several of his competitors. In this device, known under the commercial name of "Incabloc", as in other similar systems, the balance jewel in which the pivot turns, is mounted in a conical setting, which is itself placed in a solid truncated cone in the watch's frame. The setting also supports the endstone. The entire unit is held in place by a carefully calibrated spring.

When a lateral or axial shock occurs, the setting slides into the cone. This movement permits the pivots to transfer the shock to the frame. The wheels are then pulled back and recentered by the spring which also is removable thus permitting dismantling of the setting and the endstone without having to remove the balance. This is a great advantage for cleaning and oiling.

The mass production of anti-shock devices has brought down their prices so that they can be added to watches without an unduly increase in price. In addition to the ease in assembling and disassembling the modern shock-absorbing mechanisms, the oil chamber is protected from dust entry thus ensuring a longer working life of the watch.

Since the invention of the anti-shock device, the balance is no longer the most fragile part of a watch. However, in the case of very violent shocks, other components may break but these in turn are often protected, so that we no longer worry too much about watches being "shocked to death".