Schatz trademark long shaft single end brass key. #3 - 3.0mm. American made, sized on the American scale. Designed for certain Schatz model 53 case clocks, but will fit any Schatz model 53 or JUM/7 clock. (This key is too small to fit Schatz model 49 or 54 clocks.)

Measure your winding arbor, or ask us for help to determine the right key size for your anniversary clock.