The Molnia 3602A is a manual wind mechanical watch movement with a sub-second function. It features a bimetallic screw balance, a stem mechanism without a setting-lever spring, and bridge shapes that may differ from the ones shown in the Ebel 8.75''' model. The differences between the Molnia 3602A and other movements, including the 158, 159, 185, 208, 212, 220, 238, 246, 251, 261, and 277, are not known. The Molnia 3602A movement was commonly used around the period of approximately 1925.