Details
AN EARLY EIGHT-DAY CHRONOMETER MANTEL CLOCK
Thomas Mercer, No. 509, circa 1922
The circular silvered dial signed and numbered T. MERCER ST. ALBANS No. 509 8 DAY CHRONOMETER, Roman hour numerals, subsidiary seconds dial (at XII), up-and-down dial (at VI), blued steel hands, start/stop lever (beneath II), four turned gilt pillars to heavy brass plate frame, fusee and chain movement, platform escapement set in recess (at top) across the plates, Earnshaw escapement, cut bimetallic balance with circular heat compensation weights, palladium helical balance spring, strip steel detent with jewelled locking stone positioned on banking block by a screw and two steady pins, veneered burr walnut case with rectangular glass port and level to top, circular brass bezel with convex glass, levelling bun feet
170 mm. bezel diam., 255 mm. wide case, 275 mm. high
