Important Modern & Vintage Timepieces
Geneva, May 15, 2016
URBAN JURGENSEN & SONNER PERPETUAL CALENDAR YELLOW GOLD Urban Jurgensen & Sonner, Kobenhavn, No. 3001. Made circa 1980 (movement from circa 1910). Very fine, 18K yellow gold, keyless pocket watch with perpetual calendar and phase and age of the moon.
Four-body, bassine, polished, correctors in the band. snap- on gold cuvette. Silver with radial Roman numerals on a silver reserve, engraved center, outer minute divisions, subsidiary dials for the seconds, the date, days of the week and the months with four-year cycle, aperture for the moon phases concentric with seconds, the moon's age at the edge. Gold Breguet hands. 19''', matte gilt, 17 jewels, counterpoised straight-line lever escapement, cut bimetallic compensation balance with temperature and meantime adjustment screws, blued steel Breguet balance spring, index regulator.
| Grading System | |
|---|---|
| Grade: AAA | Excellent | 
| Case: 2-8 | Very good Slightly scratched | 
| Movement: 2* | Very good Overhaul recommended, at buyer's expense | 
| Dial: 1-01 | As new HANDS Original |