AndrewD[HoMe Moderator]
12829
The Accucell ...
Oct 31, 2013,19:12 PM
.... is a good recommendation, Anthony. Availability may be an issue, but it does reduce the voltage to the 1.35V target (range: 1.32 - 1.41 V) of the original circuit. Some watches will run fast with the 1.55V 387S battery, but if they are running accurately it is unclear from, what I have read, what the risks are to the coil. The movement can also be modified to reduce the voltage from the 387S battery. The cost of the Accucell is a little higher, but if you have easy access to it, why not for a little piece of mind.
Thanks for the suggestion.
Andrew
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The Accucell ...
By: AndrewD : October 31st, 2013-19:12
.... is a good recommendation, Anthony. Availability may be an issue, but it does reduce the voltage to the 1.35V target (range: 1.32 - 1.41 V) of the original circuit. Some watches will run fast with the 1.55V 387S battery, but if they are running accura...
Engineering
By: AndrewD : October 31st, 2013-19:16
I will revisit the SpaceView with some more pictures. Plus it is probably time for an Accutron photo-thread again. I agree that the engineering in the movement is phenomenal, particularly considering it was developed in the late 1950's. An emphatic way of...