Abstract: The present invention provides an apparatus and method for jointing two opposed ends of fiber optic cables to result in a hermetic cable joint. Two fiber optic cables are cut to expose each wire strand of each cable, and a tube joint is formed by joining the optical fibers of the two cables such that the tube joint is located under the wire strand of the first cable. A tapered crimp sleeve is applied over the exposed inner layer and outer layer of each of the wire strands of the two cables, the inner layer and outer layer forming stepped portions within the crimp sleeve. The crimp sleeve tapers outwardly from a central portion, such that its two ends are of a larger diameter than the central portion of the crimp sleeve. When the inner layer and outer layer of each wire strand is crimped, the crimp sleeve attains approximately the same diameter along its length.