  The star HD 193322 is a remarkable multiple system of massive stars that lies
at the heart of the cluster Collinder 419. Here we report on new spectroscopic
observations and radial velocities of the narrow-lined component Ab1 that we
use to determine its orbital motion around a close companion Ab2 ($P = 312$ d)
and around a distant third star Aa ($P = 35$ y).We have also obtained long
baseline interferometry of the target in the $K^\prime$-band with the CHARA
Array that we use in two ways. First, we combine published speckle
interferometric measurements with CHARA separated fringe packet measurements to
improve the visual orbit for the wide Aa,Ab binary. Second, we use measurements
of the fringe packet from Aa to calibrate the visibility of the fringes of the
Ab1,Ab2 binary, and we analyze these fringe visibilities to determine the
visual orbit of the close system. The two most massive stars, Aa and Ab1, have
masses of approximately 21 and $23 M_\odot$, respectively, and their spectral
line broadening indicates that they represent extremes of fast and slow
projected rotational velocity, respectively.
