What is an anti shock device & how does it work - Interwatches.com Blog

Monday 22 March, 2010 - 08:00 AM EDT

What is an anti-shock device and how does it work?

The anti-shock device is a flexible comportment intended to soften shocks so that the pivots inside of the case do not brake by receiving violent movements.

In 1933 Hans Marti, an engineer, patented a system called “Incabloc ®”. This system was based in a conical setting placed in a solid truncated cone located in the watch’s frame. The whole unit was supported by a cautiously calibrated mechanism.

In presence of a shock episode, the setting would slide into the cone allowing the pivots to transfer the shock to the frame. Then, wheels would be pulled back till being placed in the center again by the spring. This would allow the setting apart into its constituent pieces without having to remove the balance.

Some of the most prestigious watchmaking companies that have incorporated this mechanism are:



Between many others watchmaking companies like Rolex, in which in its Sea Dweller DEEPSEA watch features a Parachrom hairspring with high resistance to shocks and magnetic fields, most of the wristwatches' comapanies have incorporated such mechanism.


Similar systems are ETA's Etachoc, Rolex's Kif', Seiko's Diashock, and Citizen's Parashock.

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