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SWISS. A SILVER OPEN FACE KEYLESS LEVER POCKET WATCH WITH PATENT FIVE MINUTE TOURBILLON
THE PROPERTY OF A EUROPEAN COLLECTOR (LOTS 21-49)
SWISS. A SILVER OPEN FACE KEYLESS LEVER POCKET WATCH WITH PATENT FIVE MINUTE TOURBILLON

SIGNED ECHAPPEMENT TOURBILLON, PATENT NO. 33368, TRADEMARK BG

Details
SWISS. A SILVER OPEN FACE KEYLESS LEVER POCKET WATCH WITH PATENT FIVE MINUTE TOURBILLON
signed Echappement Tourbillon, Patent No. 33368, trademark BG
Spotted movement plates carrying escapement and second wheel revolving every five minutes around the centre wheel with 60 teeth pivoting on a bridgecock signed BREVET 33368, central white enamel dial with Roman numerals and gilt moon hands, circular case with engine turned hinged back, hinged cuvette, signed on the dial and movement, together with a photostat copy of l'exposé invention brevet No.33368
55mm. diam.
Literature
A very similar watch is illustrated in Reinhard Meis, Le Tourbillon, 1990, p.311, figs.499-52
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