three-quarter plate , wristwatch

[Оля]

three-quarter plate у наручных часов
Как это по-русски?
Даже видела картинку, но не знаю, как назвать, спасибо.

[Дакота]

THREE-QUARTER PLATE

A style of watch that has a back-plate almost complete but cut away at one side to make room for the balance-wheel,
which is mounted level with the plate instead of protruding beyond it. This style was introduced by British makers in
about 1820 as a concession to the growing demand for slimmer movements. For much of the 19th century it was often
chosen for movements of better than average quality and precision.

Перевод искала-искала, да так и не нашла. :-(
Попробуйте спросить тут:

http://watch.nm.ru/index.html