- Anomaly wrote:
- How is SHOCK ABSORPTION handled?
Here is a post explaining it.......
Benrus had something caled the Endurable shock absorbing system: it used a an assembly that held the cap jewel in a spring form. The form itself looks like an o inside of a C with the link betweeen the o and the C opposite from the attachement screw.
It is an early shock resistance method that has a couple of disadvantages: the jewel was a two-piece assembly with a hole jewel and an endstone; further, the assembly instructions contains no less than 4 warnings about not pushing down too hard, being very careful in the disassembly, don't let the bushings jump around, never press on the head when re-assembling.
The spring assembly that holds the two jewels together and provides the anti-shock protection is rather fragile when not mounted, and pales in comparison to a incabloc assembly, which while more complex is, I think, a lot less damageable during maintenance.
It does, however, provide a floating balance staff and can absorb both vertical and lateral shocks. The Benrus Endurable system exceeded the requirement of the Federal Trade Commision that governed whether a watch could be called shock resistant or not.