A TRIBUTE TO PRECISION AND COMPLICATE...
Hotel Nogalhilton Geneve, Nov 11, 2001
LOT 333
A. Helwig 1927, Deutsche Uhrmacherschule, Glashütte i. S(achsen).Fine and rare large Helwig's model of constant force escapement.
CHF 20,000 - 30,000
USD 13,000 - 19,000
Sold: CHF 63,250
C. Woden molded base, glazed dome. M. Circular varnished brass full plate, cylindrical pillars secured by screws, going barrel, "hammer and nail" constant force utilizing two pivoted detents as locking devices, one for the hammer the other for the escape wheel, double escape wheel, the smaller one for winding hammer's spring, the larger for locking, three-arm hammer divice, one arm for impulse, the other for locking, the third for winding, bimetallic balance with temperature and mean-time adjustents screws, blued steel freesprung balance spring. Signed on the top plate.Dim. Height 21 cm, base 21 cm diam.
| Grading System | |
|---|---|
Grade: |
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Case: 3 |
Good |
Dial: 3 |
Good |
