| A mid 19th Century Swiss duplex in an open face case. Keywind gilt bar movement with richly engraved single symmetrical bridge, balance cock and suspended going barrel. Polished steel regulator and stopwork, blue steel screws. Polished steel three arm balance with blue steel affixes,
spiral hairspring. Steel duplex escape wheel. White enamel dial unusually with both continuous subsidiary and centre seconds, Roman numerals, decorative blue steel hands. Silver engine turned open face case with ribbed middle and gilt bezels, gilt metal cuvette inscribed "Duplex"
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