LONGINES Yellow gold (750) collar watch Round case, signed dial with gilded background, hour markers with Arabic numerals for the hours and chemin de fer for the minutes painted in black. Second hand at 6 o'clock. Hand-wound mechanical movement signed and numbered 3089889. Dust cover engraved with the SL monogram and the inscription "En souvenir du 1er au 9 Avril1923". Gross weight: 20.5 g. - Diameter: 28 mm