Invenit et Fecit No. 413 An important, museum-quality, double-cased pocket chronometer "6th Sort" with spring...
Gehäuse
Outer and inner case - silver, smooth, case maker punch mark "TC" beneath an axe. The inner case is secured to the movement by a screw located at the bottom edge of the case.|Very good, slightly rubbed.
Zifferblatt
Enamel, off-white.|Very good.
Werk
Brass full plate movement, chain/fusee, spring detent escapement, bimetallic "Z" chronometer balance with 2 screws and 2 movable trapezoid weights, blued freesprung helical hairspring with both sides passing.|Very good, capable of running, cleaning recommended.
WERKNR:413/2635
dimension:63 mm
circa:1798
weight:184
country:England
originalbox:
originalcertificate:
guaranteecard:
servicecard:
extract:
accessories:1
clasp:
In our 78th and 80th auctions, we sold two almost identical pocket chronometers: Lot 654/78, numbered 434/2655; and Lot 52/80, numbered 429/2660. The latter was sold for €22,000. In our 92nd auction in 2015, we offered a small marine chronometer with an almost identical movement and a diameter of 42 mm (Lot 61). This piece bore the number 334/2387 and was sold for €51,900.
Gehäuse
Outer and inner case - silver, smooth, case maker punch mark "TC" beneath an axe. The inner case is secured to the movement by a screw located at the bottom edge of the case.|Very good, slightly rubbed.
Zifferblatt
Enamel, off-white.|Very good.
Werk
Brass full plate movement, chain/fusee, spring detent escapement, bimetallic "Z" chronometer balance with 2 screws and 2 movable trapezoid weights, blued freesprung helical hairspring with both sides passing.|Very good, capable of running, cleaning recommended.
WERKNR:413/2635
dimension:63 mm
circa:1798
weight:184
country:England
originalbox:
originalcertificate:
guaranteecard:
servicecard:
extract:
accessories:1
clasp:
In our 78th and 80th auctions, we sold two almost identical pocket chronometers: Lot 654/78, numbered 434/2655; and Lot 52/80, numbered 429/2660. The latter was sold for €22,000. In our 92nd auction in 2015, we offered a small marine chronometer with an almost identical movement and a diameter of 42 mm (Lot 61). This piece bore the number 334/2387 and was sold for €51,900.
