18k Solid Gold Categories: All Landeron cal 48 cal 248 Landeron 1950's 18k Solid Gold Chronograph Mechanical Movement - Manual Moon Phase ORATOR Triple Date - Day, Date & Month All / 18k Solid Gold OA-144: 1950's ORATOR 18 k Chronograph w/ Landeron 48 Movement $3,650.00 OA-145: 1950's ORATOR 18k Gold Chronograph w/ Landeron 48 Movement $3,950.00