French 18K yellow gold chronograph with tachometer Circa 1925

Gold open faced chronograph with tachometric scales
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A fine French 18 carat yellow gold open faced chronograph pocket watch with multicolour tachometric scales, made by LIP, circa 1925. This watch features a hand wound mechanical lever movement with chronograph function, activated by a pushpiece at 12 o’clock for both start/stop and reset to zero. The white enamel dial is signed and has four tachometric speed scales in different colours. The dial further displays black and red painted Arabic numerals for the hours, an outer minute track, a 30 minute counter at 12 o’clock, a subsidiary seconds dial at 6 o’clock, and a central chronograph seconds hand. The hands are pear shaped in yellow gold. The round 18 carat yellow gold case features a smooth polished bezel. The watch is fitted with a double cuvette in 18 carat yellow gold. The dial and movement are signed by LIP.
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Diameter: 51 mm
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Weight: 88 g
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Signed: LIP