Wrist check
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Alejandro
Wildlife biologist
Salamanca, Guanajuato, Mexico
Member since
Last active: 1 day ago
7.00” / 17.78 cm
Some kind of Kinetic movement, I suppose?
https://au.bulova.com/pages/bulova-accutron-history
A rather fascinating mechanism: A tuning fork, vibrating in the right frequency and achieving a accuracy which was never seen before. Hence to NASA used it for the Apollo program. If your are into physics: Those small coils are a hell of a technology. https://www.accutronwatchpage.com
https://au.bulova.com/pages/bulova-accutron-history
Thanks for posting this before the speculation reaches a comedic level.
It does emit a very slight humming noise when close to the ear (my right ear that is, the left one damaged by hunting without hearing aids… love the 80s!
What's interesting about this movement is that it was popular for pilot's watches. It was much less vulnerable to gravity and g force than a mechanical watch and kept very accurate time. It was the g shock of it's time.
My uncle had one, whenever he went to pet our dog with his left hand (watch hand) - the dog would shy away and bark at him.
Super cool watch!
My uncle had one, whenever he went to pet our dog with his left hand (watch hand) - the dog would shy away and bark at him.
I’ll try that today!
Super cool watch!
It is! Looks much smaller in person though. Must be around 36mm
Tuning forks for the win!
It does emit a very slight humming noise when close to the ear (my right ear that is, the left one damaged by hunting without hearing aids… love the 80s!
They stopped making tuning fork movements in 1977. I have one of the last of them.
Looks really elegant.
Were these accutrons made in Japan or the US?
The Accutron is definitely a flex for watch nerds 🤓
Were these accutrons made in Japan or the US?
Its hard to say without seeing the back numbers but I'm guessing Swiss production. Usually its US or Swiss in later units. Did Japan even make tuning fork movements?
Its hard to say without seeing the back numbers but I'm guessing Swiss production. Usually its US or Swiss in later units. Did Japan even make tuning fork movements?
238136
N2
😬
Nice watch. Looks great with the red strap and second hand.
238136
N2
😬
Swiss. 1972. Its been a while. I had to look it up again.
Swiss serials start with a number, US serials start with a letter.
N of course means 1970s. and 2 is 1972.
I assumed it was Swiss just from the case design. :)
Swiss. 1972. Its been a while. I had to look it up again.
Swiss serials start with a number, US serials start with a letter.
N of course means 1970s. and 2 is 1972.
I assumed it was Swiss just from the case design. :)
Ohhhh that’s great info! Thanks so much!
Its hard to say without seeing the back numbers but I'm guessing Swiss production. Usually its US or Swiss in later units. Did Japan even make tuning fork movements?
Citizen did make the Hisonic tuning fork watch using the Bulova 218 Accutron movement. This was a partnership between the two companies. Some of the comments were made in the US and some in Japan for those models. Citizen also experimented with advancing the 218 but stopped because quartz superseded it.
Timex also had a tunning fork movement called dynobeat i believe
Some kind of Kinetic movement, I suppose?
It's a tuning fork movement
Timex also had a tunning fork movement called dynobeat i believe
The dynabeat isn't a tuning fork. It has a balance wheel.