Swiss half hunter jumping seconds pocket watch Circa 1904

Magnificent half hunter pocket watch
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A very fine Swiss half hunter pocket watch with two barrels and independent jumping seconds mechanism “seconde morte” circa 1904.
Sold to Roberto Kohlschitter, Genoa. A 18k gold case, enamel dial, bridge movement, gold screw compensation balance.

In the last two decades only about 30 watches with jumping seconds and two barrels have come on the market. This complication was built from 1840 to 1912. The movement has two curved bridges and a train for both barrels, the minute ratchet wheel construction for the stop seconds mechanism  altogether a striking and impressive set-up.
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Diameter: 53 mm
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Weight 135 g
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Signed: Patek Philippe & Cie. Genève
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Roberto Pietro Kohlschitter  born 1866 in Monza was taken on as craftsman for watches at the Hydrographic Institute (Ufficio Idrografico) in Genoa in December 1885.
In 1910 he was awarded a silver medal for his work in nautical sciences. In Milan he worked as Roberto Kohlschitter, “manifattura milanese di cronometri e strumenti di precisione”.