• Movement 
    Automatic
  • Year of manufacture 
    1970
  • Lot number 
    450
  • Diameter 
    61mm
  • Location
    Switzerland

Description

THOMAS EARNSHAW POCKET
CHRONOMETER WITH Z BALANCE SILVER
"Pocket Chronometer with "Z" balance" Thomas Earnshaw,
Invenit et Fecit, No. 486 of the sort/2827.
Very fine and rare, silver pair-cased pocket Chronometer with
Earnshaw's spring detent escapement and Earnshaw's "Z"
compensation balance
OUTER: two-body, polished. INNER: two-body, "bassine",
polished.
White enamel, radial Roman numerals, outer minute track,
subsidiary seconds. Gold "heart and poker" hands.
42 mm. secured by screws, gilt full-plate with cylindrical
pillars, fusee and chain with Harrison's maintaining power,
Earnshaw spring detent escapement, escape wheel jeweled
with endstones in screwed chatons, Earnshaw's "Z" bimetallic
compensation balance with sliding timing weights and two
steel mean time screws, single-footed clock with endstone in
screwed chaton, free-sprung blued steel helical balance-spring.


Antiquorum Auctioneers
805 Third Avenue, 10fl
New York, NY 10022
United States
Contact Person Kontaktperson
Title 
Ms
First name 
Antiquorum
Last name 
New York

Phone 
+1-229092850
Fax 
+41 22 909 28 60