Swiss open-faced gold minute repeating watch Circa 1920

Fine thin open-faced yellow gold minute repeating  pocket watch
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A Fine Swiss thin open-faced yellow gold minute repeating watch, circa 1920, ultra-thin manual winding nickel lever movement, 29 jewels.
Silver engine turned dial with sunburst pattern, painted black numerals within a stylized reserve, subsidiary seconds, outer minute track.
Polished 18k yellow gold case, snap-on case back, slide to activate the minute repeater at 3 o’clock, case and dial signed.
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Diameter: 47 mm
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Signed: L. LeRoy and Cie