L2.773.4.51.8Ref

Reference L2.773.4.51.8 of the Longines Master Collection 42 Chronograph Calendar has a 42.00mm case and Black dial. Its self-winding movement delivers a full calendar, moon phase, and chronograph. Pictured here with the L678.2 caliber, the actual movement may be either L687 or L678 based on production year.