This is the tuning fork-based movement of Bulova's Accutron. This was downloaded from http://www.accutrons.com and was recorded by John Schult, Member NAWCC from Waterford, MI.
A marvel of modern Swiss engineering. To make this work required a level of precision never before seen in the watchmaking industry. If I remember right, each of the wheel teeth is smaller than the diameter of a human hair.
360hz tuning fork frequency. Those pawls ratchet over a million times per hour. Mine has been doing that with minimal maintenance (cleaned about every decade)for forty years.
Wow! Look how fast that index wheel is turning! I really didn't expect it to go that fast! Those notches are amazingly tiny!
den2003 1 year ago
@ihatestupidsignups
Yes, but the actual technology was developed at Bulova's Swiss headquarters in Biel, by a Swedish engineer named Max Hetzel.
douro20 2 years ago
@douro20 The original Accutrons were not swiss. US made.
ihatestupidsignups 2 years ago
The index wheel spins more than 38 millions times / year.
When it finally dawned on me what's happening inside an Accutron, I completely shit a brick. Now I have a ton of them. GREAT WATCH!
guitartec 3 years ago 2
Wow! Looks more like a record with tone arm(s) riding it than the pawls moving the wheel.
veedriver 3 years ago
Awesome!
DragLimited 3 years ago
A marvel of modern Swiss engineering. To make this work required a level of precision never before seen in the watchmaking industry. If I remember right, each of the wheel teeth is smaller than the diameter of a human hair.
douro20 4 years ago
360hz tuning fork frequency. Those pawls ratchet over a million times per hour. Mine has been doing that with minimal maintenance (cleaned about every decade)for forty years.
dgerst 4 years ago
That is a pretty amazing view!! I own three of them. Super cool! THANKS
smokinjoeh2750 4 years ago
alright, that is how it works.
what's the expected mttf for the accutron? is there a need for maintenance?
BankersAreAssassins 4 years ago