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 And another oldie...1950s Benrus handwinder....Shock Absorber model...

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thianwong
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PostSubject: And another oldie...1950s Benrus handwinder....Shock Absorber model...   And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_minitimeSun Apr 18, 2010 7:55 pm

a simple, plain jane version but nice....handwound it the other day and it started up right away and kept good accuracy for 10 hours.....then put it away haha!

And another oldie...1950s Benrus handwinder....Shock Absorber model... Benrusshots011
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PostSubject: Re: And another oldie...1950s Benrus handwinder....Shock Absorber model...   And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_minitimeSun Apr 18, 2010 8:54 pm

good looking watch, cool lugs and a nice used but enjoyed wear on it.
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Anomaly
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PostSubject: Re: And another oldie...1950s Benrus handwinder....Shock Absorber model...   And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_minitimeSun Apr 18, 2010 9:17 pm

How is SHOCK ABSORPTION handled?

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And another oldie...1950s Benrus handwinder....Shock Absorber model... ANOMALYSIG2A-1
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thianwong
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PostSubject: Re: And another oldie...1950s Benrus handwinder....Shock Absorber model...   And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_minitimeSun Apr 18, 2010 9:33 pm

Anomaly wrote:
How is SHOCK ABSORPTION handled?

Here is a post explaining it.......

Hi -

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.
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AtomicTom
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PostSubject: Re: And another oldie...1950s Benrus handwinder....Shock Absorber model...   And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_minitimeSun Apr 18, 2010 10:47 pm

That's a neat one Thian ! A nice, and simple dial, with some
amazing skeleton hands, classic case, and cool bracelet ! And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_cool
That shock absorbing system is VERY impressive by the way
too. Thanks !

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And another oldie...1950s Benrus handwinder....Shock Absorber model... NewSigcopy
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PostSubject: Re: And another oldie...1950s Benrus handwinder....Shock Absorber model...   And another oldie...1950s Benrus handwinder....Shock Absorber model... Icon_minitime

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