What they said about The Accutron Movement in 1964:
The Accutron Story, Old fashion balance wheel is still in used in all wind, and electric Watches. It is not used in the Accutron movement.
Accutron tuning fork keeps virtually perfect time and comes with the first guarantee of accuracy ever given.
We don't call it a watch.
All the parts that make a watch fast or slow have been left out. ( The Accutron movement doesn't even tick. It hums. Hold it to you ear. It's eerie.)
But let's answer the big question first. What kind of time does it keep?
Here are 2 statements that no regular watch has ever dare to make:
1. We guarantee average daily accuracy within 2 seconds.(In fact, 1 second or none at all are more common!)
2. And what's more, this is the accuracy this timepiece will keep for life.
You can see why the United State now uses the Accutron movement instead of conventional timing devices in satellites. (And why the Air Force issued it to all X. 15 pilots. Many owners use it for celestial navigation.)
The secret lies in the vibrations of a fine tuning fork 360 of them a second. (A regular watch only splits a second into 5parts.)
This principle not only accounts for the time the Accutron movement will keep. It also frees this timepiece from all the mechanical changes that occur to a regular watch.
One speck of dust or congealed watch oil for instance can throw your present watch off as much as several minutes a day. So can a worn balance wheel, staff, screw or spring.
These things do not affect Accutron time at all.
In fact, this timepiece only has 12 moving parts- and the only thing you ever have replace is the battery.(And the battery last at least a year.)
In short, you can forget about the usual cleaning bills and the cost of new parts- just as you can forget checking your time see if it's right.
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