ACCUTRON WATCH BANDS

Accutron Watch Bands : Nice Men Watches : Timex Carriage Watches.

ACCUTRON WATCH BANDS : ACCUTRON WATCH


Accutron Watch Bands : Nice Men Watches : Timex Carriage Watches.



Accutron Watch Bands





accutron watch bands














Bulova Accutron 1970




Bulova Accutron 1970





O itt egy tobb mint 30 eves Accutron ora, elektromos, hangvillas szerkezet. A kep illusztracionak keszult egy cikkhez az Ora Magazinban.

"Max Hetzel talalta fel a hangvillaval mukodo orat. A hangvilla rezgesszama szigoruan meghatarozott es allando. Az Accutron oraban egy 20 mm hosszu hangvilla masodperenkent 360 rezgest vegez, amit egy hozzacsatlakozo kilincsmu visz a fogaskerek rendszerre es a mutatokra. Pontossaga es egyszerusege miatt verhetetlennek tartottak. Az elso amerikai mesterseges holdak vezerlokeszuleket Accutron ora szabalyozta. Karrierjenek a kvarcora vetett veget." forras: wikipedia

This here, is a 30 years old Accutron wrist watch, driven with an electromagnetically oscillated tuning fork.

"Bulova's Accutron watches, first sold in October 1960, use a 360 hertz tuning fork to drive a mechanical gear train to turn the hands. The inventor, Max Hetzel, was born in Basel, Switzerland, and joined the Bulova Watch Company of Bienne, Switzerland, in 1948. The tuning fork was powered by a one-transistor electronic oscillator circuit, so the Accutron qualifies as the first electronic watch" from wikipedia

Strobist info:
580EXII in Lastolite Ezybox from near above,
LP120 geled green as background from below and behind table,
the watch was suspended above a silver fill card,
and a very-very snooted 580EXII pointed to the face of the watch.
Triggered by Elinchrom Skyports.












Bulova Accutron Marketing #2




Bulova Accutron Marketing #2





"an ingenious electronic brain", no less.

The Bulova Accutron is regulated by a tiny tuning fork excited by two electromagnets that are driven by a _very_ small (for the time) 1 transistor oscillator.The oscillations of the tuning fork are geared down to drive the hands, hence the fact they sweep rather than tick. If you sit the thing on a set of drawers by your bed you can hear it sing all night long.

The Accutron movement was used to regulate time in the cockpit instruments of Apollo 11. And was also used to regulate time in a data transmitter left on the moon in the Sea of Tranquillity.









accutron watch bands







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