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.
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.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
