ALBERT H. POTTER & CO., GENEVA [ALBERT H. POTTER & CO.，日內瓦] | AN IMPORTANT AND POSSIBLY UNIQUE GOLD OPEN-FACED KEYLESS WATCH WITH UNUSUAL LEVER ESCAPEMENT AND SINGLE RUBY-TOOTH ESCAPE WHEEL, AND REGULATOR DIAL CIRCA 1887, NO. 1 [罕有黃金懷錶...

ALBERT H. POTTER & CO., GENEVA

[Albert H. Potter & Co.，日內瓦]

AN IMPORTANT AND POSSIBLY UNIQUE GOLD OPEN-FACED KEYLESS WATCH WITH UNUSUAL LEVER ESCAPEMENT AND SINGLE RUBY-TOOTH ESCAPE WHEEL, AND REGULATOR DIAL

CIRCA 1887, NO. 1

[罕有黃金懷錶備罕有槓桿式擒縱系統、紅寶石單鉤擒縱齒輪及三針一線錶盤，年份約1887，編號1，可能為孤例]

• Movement: unusual v-shaped central bridge with pearled machined decoration and screwed gold chaton jewels, similarly decorated s-shaped balance cock with index regulator, lever escapement, the patented escape wheel with single ruby-tooth, bi-metallic compensation balance, going barrel with Maltese-cross stop work, signed Albert Potter & Co., Geneva, No. 1 in his trademark logo

• Dial: white enamel regulator-type, outer Arabic minute ring, two subsidiary dials for hours with Roman numerals and seconds with Arabic numerals, signed Albert H. Potter & Co., Geneva

• Case: 18ct gold, plain polished band and case back, rounded bezels, hands set by folding the bow forwards to the case, centre of the inside case back stamped Albert H. Potter & Co.

diameter 49mm

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