Very fine Swiss silver railway man’s pocket watch Circa 1912

Silver watch with engraved train decoration 
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A very fine Swiss silver railway man’s pocket watch with engraved decoration, circa 1912. A solid, polished case, screw down bezel with a serrated top edge, and back engraved with a steam engine travelling over a bridge. White enamel dial with bold black radial Roman numerals, outer minute track, sunk subsidiary seconds and blued steel spade hands. A frosted gilt movement, 15 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, and an index regulator. Dial, case and movement signed. This watch is sold with a box and certificate of authenticity.
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Diameter: 58.5 mm
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Signed: Omega  Swiss
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Most of the watches bearing this decoration and calibre were delivered to the Izmir-Kasaba railways. Breguet balance spring, adjusted to less than one minute per day.