- Home
- Auction 102
- 231 BULOVA ACCUTRON gold wristwatch, 1960s 18k gold case, ...
Лот 231 - Auction 102
232
Оферты
Описание
BULOVA ACCUTRON gold wristwatch, 1960s
18k gold case, champagne dial with Roman numerals, original plexiglass. Original leather strap.
Case diameter 34 mm. Original case. Item condition grading: ***** excellent
The first Bulova Accutron was released in 1960 and represented a revolution in the watch industry as it was the first electric watch with a tuning fork, the first to use a bipolar transistor and the first watch without a spring or balance. At the time, the Accutron (accuracy through electronics), invented by Max Hetzel (5 March 1921 - 2004), was the most accurate wristwatch ever made.
The Accutron has an oscillation frequency of 360 Hertz; some later models have different frequencies, but the main characteristic of this type of watch is to emit an audible note of constant frequency, hence the name sonic watch.
The other distinctive feature is the continuous rotation of the second hand: whereas in a quartz watch it clicks every second and in mechanical watches it appears to turn continuously, in tuning fork watches the motion is practically uniformly circular as the hand moves at the speed of the index wheel, i.e. 300-320 times per second.
More than 4 million watches were sold until production was stopped in 1977.
Используйте форму для регистрации или введите логин в правой части формы.
За дополнительной информацией обращайтесь info@bertolamifineart.com
Политика использования файлов cookie
Этот сайт использует файлы cookie для улучшения взаимодействия с пользователем и сбора информации об использовании сайта. Существуют также файлы cookie, которые можно использовать для выбора персонализированной рекламы и рекламного контента. Вы можете ознакомиться с нашей политикой использования файлов cookie, принять все файлы cookie и продолжить просмотра, нажав "Принять" или измените свой выбор, нажав "Настроить".