English 18K gold highly complicated lever watch Circa 1889

Gold complicated full hunter by J.W. Benson
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An extremely heavy and highly complicated English 18 carat gold hunting cased minute repeating pocket watch, Hallmarked London 1889. Precision lever movement, screwed gold chatons, diamond endstone, eight complications, perpetual calendar with consideration of leap years, moon phase and moon age, minute repeater, chronograph. White enamel dial with Roman hours and Arabic five minutes, blued steel hands. Plain case. Dial signed below the moon phase, signature faded and only weakly visible, cuvette signed and numbered. All complications are in working order.
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Diameter: 57.5 mm
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Weight: 205 g
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Signed: J.W. Benson 62 & 64 Ludgate Hill London
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This piece is one of the most complicated and heaviest pocket watches made by Benson. It is assumed that the raw movements were made by Audemars Piguet and finished by Benson.