L2.773.4.51.6Ref

The 42mm case of the Longines Master Collection 42 Chronograph Calendar houses a self-winding movement equipped with a full calendar, moon phase, and chronograph. Reference L2.773.4.51.6 measures 42.00mm and sports a Black dial. It is illustrated with the L687.2 caliber, though either L687 or L678 may be used depending on the production year.