Swiss silver open faced Quality Extra pocket watch Circa 1908

Silver gentlemen’s pocket watch 
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A Swiss silver open faced pocket watch in Quality Extra, circa 1908. Sold to Johann Greiner, Imperial and Royal Clockmaker in Graz, Austria, circa 1908. A polished case. White enamel dial with Arabic hour numerals, an outer minute track, sunk subsidiary constant seconds at 6 o’clock and spade hands. The 2/3 plate movement with a lever escapement and screw compensation balance. Movement numbered and signed Quality Extra, the dial is signed International Watch Co. Schaffhausen.
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Diameter: 53 mm
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Weight: 107 g
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Signed: Probus-Scafusia International Watch Co. Schaffhausen
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IWC’s motto is Probus Scafusia, a Latin phrase meaning ‘good, solid craftsmanship from Schaffhausen’. The motto was established in 1903.