MARGETTS, NO. 61, CIRCA 1800
細節
A GEORGE III EIGHT DAY MARINE CHRONOMETER
Margetts, No. 61, circa 1800
The white enamel dial signed MARGETTS. LONDON INVT No. 61, Roman hour numerals within outer minute chapters with Arabic five minute intermarkers and large diameter seconds dial (at VI), blued steel hands, full-plate movement with screwed grey steel balustrade pillars, Earnshaw escapement, three-armed cut bimetallic balance mounted between the plates, small underslung segmental heat compensation wieghts, oversprung blued steel helical balance spring, spring foot detent with jewelled locking stone mounted above the pillar plate and engaging with the discharging and impulse rollers which are mounted at the extreme lower end of the balance staff, train wheels with six-armed crossings, and 'upside-down' fusee, brass bowl with screw-on bezel, gimbal ring now in three-tier rosewood box with brass quarter edging, brass stringing to front, recessed brass handles, the top lid with inset brass plaque inscribed No. 61 MARGETTS
112 mm. dial diam., 205 mm. sq. box
Margetts, No. 61, circa 1800
The white enamel dial signed MARGETTS. LONDON INVT No. 61, Roman hour numerals within outer minute chapters with Arabic five minute intermarkers and large diameter seconds dial (at VI), blued steel hands, full-plate movement with screwed grey steel balustrade pillars, Earnshaw escapement, three-armed cut bimetallic balance mounted between the plates, small underslung segmental heat compensation wieghts, oversprung blued steel helical balance spring, spring foot detent with jewelled locking stone mounted above the pillar plate and engaging with the discharging and impulse rollers which are mounted at the extreme lower end of the balance staff, train wheels with six-armed crossings, and 'upside-down' fusee, brass bowl with screw-on bezel, gimbal ring now in three-tier rosewood box with brass quarter edging, brass stringing to front, recessed brass handles, the top lid with inset brass plaque inscribed No. 61 MARGETTS
112 mm. dial diam., 205 mm. sq. box