Longines Watch Master Collection Ladies L2.357.4.97.6. As a traditional watchmaking company, Longines has been producing exceptional timepieces since the very beginning. Today, the Longines Master Collection is the perfect illustration of this corporate ethos, as can be seen from the success enjoyed by this range since it was launched in 2005. All fitted with self-winding movements, the various models in this collection offer many special features. The Longines Master Collection brings together the classical elegance and excellent quality which never cease to delight those who appreciate exceptional timepieces.