Important Modern & Vintage Timepieces
Geneva, May 15, 2016
LOT 41
URBAN JURGENSEN SONNER JUMP SECOND CHRONOMETER TRAVEL CLOCK Urban Jurgensen Sonner, Riebenhaon, No. 1112. Made circa 1880. Fine, keyless, center-seconds, sterling silver deck Chronometer with Guillaume balance in original wooden box. Accompanied by the original winding and front key.
CHF 1,500 - 3,500
HKD 12,000 - 28,000 / USD 1,600 - 3,600
Two part mahogany box that can be lifted in an upright position. White enamel with Roman numerals, outer minute and seconds rings with fifteen-minute/seconds Arabic markers. Blued steel hands. 83 mm. frosted gilt, straight line lever escapement, bimetallic compensation balance, self compensating blued steel Breguet balance spring, index regulator with micrometric adjustment screw. Movement signed.
| Grading System | |
|---|---|
Grade: AA |
Very good |
Case: 2-8 |
Very good Slightly scratched |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 2-73-01 |
Very good ENAMEL AND VARIOUS TYPES OF DECORATION Chipped under bezel,not visible when closed HANDS Original |