Swiss gentlemen’s pocket watch with rare movement circa 1910

Open faced pocket watch by Longines
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A Swiss pink gold Longines gentlemen’s watch with rare movement, 2 pink gold watch chains and original box, circa 1910.
14 carat gold engine turned case with both lids from solid gold; very rare precision lever movement by Longines with patented fine adjusting device and patent no. 3884; white enamel dial with black Arabic hours, red Arabic minutes, sunk subsidiary dial for the seconds and pink gold Louis XV hands; 2 replaced 14 carat pink gold watch chains, length of 1st chain circa 15.5 cm, length of 2nd chain circa 25.5 cm, both with high-grade 14 carat gold carabiners and original box. Dial signed,  movement signed and numbered.
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Diameter: 49 mm
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Weight: 86 g
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Signed: Longines