ANTIQUE ROSEWOOD  BAROMETER - MAHOGANY MANTEL  TIMEPIECE -  BRASS LANTERN CLOCK - BRASS   SKELETON   TIMEPIECE
A MAHOGANY BRACKET TIMEPIECE, the silvered dial engraved with fine scrolling leaves in an arched case fianked by gilt-bronze terms and surmounted by flambeau finials, 14in;
36cm, c. 1870.
A  MAHOGANY MANTEL  TIMEPIECE,  the
dial with arabic numerals, stamped Eight-day, in a waisted case [...]

18th Century Watches
The successful application of the balance spring to the 18th Century Watch in 1675, while overcoming one great problem, showed up another — the inefficiency of the verge escapement. The best accuracy attainable was about one minute a day depending on conditions.
Much experimentation both on the Continent and in England was carried out [...]