拍品 61
61
Auburndale. A rare American 'rotary design' keyless pocket watch
VAT rate of 5% is payable on hammer price plus buy… 顯示更多
Auburndale. A rare American 'rotary design' keyless pocket watch

SIGNED AUBURNDALE, ROTARY, MASS, NO. 448. CIRCA 1878

細節
Auburndale. A rare American 'rotary design' keyless pocket watch
Signed Auburndale, Rotary, Mass, No. 448. Circa 1878
This highly unusual steel movement consists of the balance wheel, lever escapement and gear train mounted on a rotating disc, driven by an outer toothed ring, under which is installed the going spring, the unusual winding mechanism visible under the glazed back, the white enamel dial with Roman numerals and blued steel spade hands, in turned white metal case
55 mm. diam.
注意事項
VAT rate of 5% is payable on hammer price plus buyer's premium.

拍品專文

ALBERT ODMARK NOTES
Bought NAWCC, 12 February, 1988.

This ingenious design by Jason R. Hopkins was patented in 1875, was a low cost version of a rotating mechanism to average out position errors and eliminating the time involved in adjusting to various positions. The watch sold originally for $10. The company closed in 1883 having produced 3,230 watches.