LEROY & FILS Pink gold 18K (750) collar watch, Sphinx hallmark (1819-1838). Case: domed reverse, applied with a monogram in relief, gold bowl engraved: "N°149,127, Leroy & Fils, Horlogers du Roi, 114, 115, 116 Galerie de Valois, Palais Royal, Paris". Dial: white enamel, black Roman numeral hour markers and red Arabic minute markers. Movement: mechanical, moustache lever escapement, bimetallic compensated balance wheel, blued steel Breguet balance spring. Case signed. Diameter: 30mm Gross weight: 26.34g (To be overhauled, glass to be refastened)