A REVOLUTIONARY MAHOGANY TABLE REGULATOR WITH MEAN AND REVOLUTIONARY TIME AND CALENDAR

UNSIGNED, CIRCA 1800

细节
A REVOLUTIONARY MAHOGANY TABLE REGULATOR WITH MEAN AND REVOLUTIONARY TIME AND CALENDAR
unsigned, circa 1800
The convex white enamel dial with elaborately pierced and chased ormolu mean time hour and minute hands, blued steel revolutionary hour and minute hands, gilt-metal arrow-head Gregorian calendar hand, the revolutionary calendar on the outer perimeter indicated to by a blued steel hand with looped end, the large circular movement with four back-pinned pillars, pinwheel escapement mounted on the backplate with fine adjustment to the crutchpiece for the knife-edge suspended gridiron pendulum with nine brass and steel rods with a fanned top, countwheel strike on bell, the case with detachable dentilled pediment, glazed front and sides, the rear door with a hidden spring release catch beneath the pediment, the moulded base on block feet

拍品专文

Decimal or Revolutionary time was adopted by decree of the National Convention on November 24, 1793. It stipulated that the Gregorian calendar should be abandoned and replaced by the Republican calendar which divided the day into ten hours each with one hundred minutes and then further sub-divided into one hundred seconds.
Although perhaps a logical 'simplification' of timekeeping the habits of the populous were difficult to change. The new system meant having to design a new dial and to this end a competition was organised to invent one that was clear and easy to read.
Despite the efforts of some of the great horological minds the system was never really adopted and clockmakers had no real reason to fully support it because their Revolutionary clocks were useless outside France which ruined their export trade.
By 1795 it was no longer compulsory to use Decimal time and even before then clocks and watches were being made with both the 'old' and 'new' systems as on the present example.
Finally it was decreed that the Decimal system had proved impossible to implement properly and from January 1, 1805 French timekeeping reverted back to the old system