Swiss 18K yellow gold open faced chronograph watch Circa 1900

Gold lever pocket chronograph by Omega
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A Swiss 18 carat yellow gold open faced pocket chronograph watch, circa 1900. This watch features a lever movement. The dial is white enamel with Arabic radial hours, outer railway minute divisions, and a red afternoon hour indication. It has a sunk subsidiary dial for the constant seconds, a 15 minutes counter, a centre chronograph hand, and gold spade hands. The case is yellow gold and plain. The dial, case, and movement are signed OMEGA.
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Diameter: 50 mm.
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Weight: 86.7 g
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Signed: Ω Omega