FIELD: physics.
SUBSTANCE: in the Islamic calendar, the day of the month scale according to the Islamic calendar has series arranged numbers or marks of numbers of the days of the month according to the Islamic calendar from 1 to 30, and the apparatus for indicating days of the month according to the Islamic calendar on the said scale is in form of a needle indicator for the first day of the month according to the Islamic calendar at the beginning of each month. The watch with the Islamic calendar has a clock mechanism, a face with apparatus for indicating solar time, a month scale according to the Islamic calendar, a day of the month scale according to the Islamic calendar, apparatus for indicating months and days according to the Islamic calendar and apparatus for moving the Islamic calendar, where the day of the month scale according to the Islamic calendar comprises series-arranged numbers or marks of numbers of the days of the month according to the Islamic calendar from 1 to 30, and apparatus for indicating days of the month according to the Islamic calendar can be automatically reset on the first day of the month according to the Islamic calendar at the beginning of each month.
EFFECT: high accuracy, reliability, possibility of installation into any type of analogue clock.
25 cl, 6 dwg
