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[OM] Re: No Record (yet) of Zuiko 24-40mm f4

Subject: [OM] Re: No Record (yet) of Zuiko 24-40mm f4
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Tue, 25 Mar 2008 15:50:54 -0400
This is one of the "optional extra" ones for time keeping accurate to 
within 15 seconds/month.  It has an invar pendulum rod and mercury vial 
bob for temperature compensation.

Chuck Norcutt

Geilfuss Charles wrote:
> Indeed they did make clocks; pretty cool ones too.
> 
> http://www.shiawasseehistory.com/ibm.html
> 
> Charlie

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