Geneva, Nov 09, 2025
LOT 560
CHARLES DROZ, ENGLAND, SPECIAL ORDER '' MEDAILLON A TACT'' WITH A VERY UNUSUAL AUXILIARY DIAL DIVIDED UP TO 120 MINUTES AND AUXILIARY DIAL DIVIDED UP TO 120 SECONDS, 18K YELLOW GOLD
CHF 12,000 - 22,000
HKD 118,000 - 214,000 / USD 15,000 - 27,500 / EUR 12,900 - 23,700 / JPY 2,280,000 - 4,180,000
An extremely fine and probably unique, 18k gold, manual wind open-face, key-winding pocket watch. Exceptional silvered dial finely engine-turned and richly engraved with floral and rococo motifs. At 9 o’clock, an eccentric subsidiary dial for the hours and minutes with Roman numerals. At 1 o’clock, an eccentric subsidiary dial graduated for 120 minutes (two-hour counter). At 3 o’clock, an eccentric subsidiary dial graduated for 120 seconds. At 6 o’clock, a subsidiary s further features a “Fast/Slow” regulation aperture. Back cover featuring a single gold à tact hand, set in an engine-turned “à grains d’orge” case, with a gold pointer and inlaid blue enamel Roman numerals on the dial. The flat engine-turned band includes 12 hour markers (including the pendant) for the à tact function.
| Grading System | |
|---|---|
Grade: |
|
Case: 3 |
Good |
Movement: 3* |
Good Overhaul recommended, at buyer's expense |
Dial: 3-01 |
Good HANDS Original |
Brand Charles Droz, England
Year London hallmarks for 1813
Movement No. 41
Diameter 37 mm.
Caliber 33 mm., gilded brass, with going barrel, duplex escapement, monometallic balance (probably in gold) and blued steel flat hairspring
Weight 50 gr.
Signature Dial and movement
Accessories with a short 18K gold length of chain and male ratchet key,