The Longines Master Collection Date 42 is a classical wristwatch with a round case and automatic movement from Longines' popular Master Collection. Available in a number of versions, the present reference L2.893.4.51.8 has a Black dial. It is listed here with caliber L619.2, though depending on the year of production it can be powered by either the L619 or the L888 (-2 since 2017, -3 since 2019).