Hellmuth Bach, Jülich

AN OPEN-FACED KEYLESS FIVE MINUTE TOURBILLON WATCH WITH LEVER ESCAPEMENT AND FORTY-TWO HOUR UP-AND-DOWN INDICATION 1983

• Movement: frosted gilded three-quarter plate, lever escapement mounted on a five-minute tourbillon carriage, bi-metallic compensation balance, signed and dated Hellmuth Bach, Jülich, 1983
• Dial: matt silvered, raised pink gilded baton hour indexes, black pearled outer minute ring, two high sheen circular satin finished subsidiary dials for constant seconds and 42-hour power reserve indication, blued steel feuille hands
• Case: yellow metal, rounded bezels, glazed case back
diameter 64mm