T.F. Cooper, 6 Calthorp, St. Gray's Inn Road, London, No. 7521, with London hallmarks for 1864. Fine and unusual 18 ct. gold, extra large, pair cased " cabriolet" pocket chronometer, certainly made as an exhibition piece. | Important Collectors Wristwatches Pocket Watches & Clocks | Geneva, Hotel Des Bergues, 21st October 1995

Important Collectors Wristwatches Po...

Geneva, Hotel Des Bergues, Oct 21, 1995

LOT 225

T.F. Cooper, 6 Calthorp, St. Gray's Inn Road, London, No. 7521, with London hallmarks for 1864. Fine and unusual 18 ct. gold, extra large, pair cased " cabriolet" pocket chronometer, certainly made as an exhibition piece.

CHF 25,000 - 28,000

C. Outer, three body massive, "bassine", engraved all over in Arabesque pattern, the back with a town view with horse-drawn dray in foreground. Inner, three body massive "bassine", marked "J.B." (John Bacon or John Barnett), the band chased with interlaced decoration, the back with Summer Flowers, arabesque on the border. D. White enamel with Roman numerals and sunk subsidiary seconds. Blued steel Breguet hands. Floral and foliate chased hinged gold cuvette. M. 20 "', frosted and gilt three-quarter plate, 18 jewels in screwed settings, fusee with chair and maintaining power, Earnshaw type spring detent escapement, cut bimetallic balance with gold screws, free sprung blued steel helical balance spring with terminal curved, gilt brass cock engraved in vermicelli pattern, diamond endstone. Signed on the dial and back plate. hl excellent condition. Diam. 76 mm.

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Note: By reversing this watch in its outer case, it can be worn in either open-face or hunter mode. Due to its size, its weight and its quality, this watch was certainly made as an exhibition piece. THOMAS FREDERICK COOPER was a well-known watch-maker specialising in duplex and chronometer movements which he mainly supplied to the American market. Addresses: Duncan Place, City Road 6 Calthorpe St Grays Inn Rd 1842-76 12 Calthorpe Rd 1877-80.