Swiss pink gold keyless winding pocket watch Circa 1905

Gold lever made for Isidoro Marx, Porto Alegre, Brazil
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A Swiss 18 carat pink gold keyless winding pocket watch made by International Watch Co., Schaffhausen, circa 1905. This watch is made for Isidoro Marx, Porto Alegre, Brazil. An engine turned case back with, in the center an escutcheon. White enamel dial with Roman numerals, outer minute track, subsidiary seconds at 6 and steel pear gold hands. A gilt brass movement, going barrel,  gold screwed chatons, straight line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator with swanneck spring and micrometric screw. The dial, case and movement are signed.
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Diameter: 55 mm
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Weight: 109 g
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Signed: International Watch Co., Schaffhausen