Lot Essay
This escapement was invented by Peter Debaufre in 1704, from which the Sully and Ormskirk escapements were developed.
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SIGNED BOURQUIN, BIENNE. CIRCA 1890
Details
Bourquin. An interesting keyless movement with unusual lever escapement
Signed Bourquin, Bienne. Circa 1890
The nickel plated keyless bar movement jewelled to the third, the uncut bimetallic balance with ruby endstone, the steel escape wheel consisting of two rows of cylinder type teeth, a steel lever with single pallet oscilating between the teeth, the spring barrel with unusual click mechanism, the white enamel dial with Roman numerals, subsidiary seconds, blued steel spade hands, in later silver case with gold hinges and thumb pieces, hallmarked London 1980
43 mm. diam.
Signed Bourquin, Bienne. Circa 1890
The nickel plated keyless bar movement jewelled to the third, the uncut bimetallic balance with ruby endstone, the steel escape wheel consisting of two rows of cylinder type teeth, a steel lever with single pallet oscilating between the teeth, the spring barrel with unusual click mechanism, the white enamel dial with Roman numerals, subsidiary seconds, blued steel spade hands, in later silver case with gold hinges and thumb pieces, hallmarked London 1980
43 mm. diam.
Special notice
VAT rate of 5% is payable on hammer price plus buyer's premium.