This is the MLT-10 a 7 day movement.  The weights and cabling are not shown.  This movement ran on 7.5 lb during it's test runs and kept very good time.    The minute hand on the left, hour hand on the right, and the second hand above. The time can be set by  turning  the intermediate wheel.  It has a graham escapement  with a seconds hand.    The time train incorporates three rolling pinions made out of brass.  This reduces  engaging and disengaging friction between the teeth of the wheels and the pinions.