OMEGAMANIA
Geneva, Mandarin Oriental Hotel Du Rhône, Apr 15, 2007
LOT 107
?OBSERVATORY CHRONOMETER?
Omega, ?Chronomètre Observatoire?, No. 3999780. Made in 1912.
Very fine rare and important, silver and pink gold keyless pocket chronometer with
Guillaume balance, one of 360 pieces made in 1912 for inclusion in Observatory
trials. This watch is sold with a box, Certificate of Authenticity and 2-year Omega guarantee.
CHF 6,000 - 8,000
EUR 3,800 - 5,000 / USD 5,000 - 6,500
Sold: CHF 17,700
C. Three-body, ?bassine et filet?, solid, polished, pink gold bezel thumb piece and hinges, hinged silver cuvette. D. White enamel with bold Paris numerals, outer minute track, sunk subsidiary seconds. M. 21??? Observatoire, frosted gilt, 21 sapphire jewels, Guillaume balance with gold and platinum timing screws, blued steel Breguet balance spring with Philipps double terminal curves, ?swan-neck? micrometer regulator. Case, dial and movement signed. Diam. 56.7 mm. Property of an English Gentleman
| Grading System | |
|---|---|
Grade: |
|
Case: 2 |
Very good |
Movement: 2 |
Very good |
Dial: 2-01 |
Very good HANDS Original |
Notes
Caliber 21??? Observatory
was produced as follows:
- 1911: 12 pieces, ?Observatory Deck Chronometer? version, barrel with Maltese cross
(nos. 3,818,312 to 3,818,323)
- 1912: 360 pieces, idem, (nos. 3,999,776 to 4,000,135)
- 1916: 6 pieces, ?Observatory Deck Chronometer? version (without Maltese cross)
(nos. 5,035,790 to 5,035,795).