細節
A REGENCY EIGHT-DAY MARINE CHRONOMETER
Barraud's, No. 974, circa 1820
The silvered dial signed and numbered Barraud's, LONDON 974, Roman hour numerals, beetle-and-poker blued steel hour and minute hands, subsidiary seconds dial with blued steel hand (at XII), aperture up-and-down indicator, main-frame assembly carrying reversed fusee, barrel and centre wheel, sub-frame assembly with chain guard protector and carrying remainder of train and Earnshaw escapement, cut Pennington balance with bimetallic rim and brass cross arm with brass affixes at out extremities, blued steel helical balance spring, dovetail spring detent with steel locking pallet, brass bowl with Barraud's butterfly winder, gimballed in plain three-tier mahogany box with external brass drop handles
120 mm. dial diam., 173 mm. sq. box
Barraud's, No. 974, circa 1820
The silvered dial signed and numbered Barraud's, LONDON 974, Roman hour numerals, beetle-and-poker blued steel hour and minute hands, subsidiary seconds dial with blued steel hand (at XII), aperture up-and-down indicator, main-frame assembly carrying reversed fusee, barrel and centre wheel, sub-frame assembly with chain guard protector and carrying remainder of train and Earnshaw escapement, cut Pennington balance with bimetallic rim and brass cross arm with brass affixes at out extremities, blued steel helical balance spring, dovetail spring detent with steel locking pallet, brass bowl with Barraud's butterfly winder, gimballed in plain three-tier mahogany box with external brass drop handles
120 mm. dial diam., 173 mm. sq. box