Urwerk UR-111C

UR-111C: A world first in watchmaking, the running seconds indicator is visible as the numbers pass a cluster of optical fibers. And the UR-111C, available in 25 pieces in polished steel, 25 pieces in gunmetal steel, and 25 pieces in Black Steel and Titanium, bears many other non-traditional features as well, including a roller on the top of the case that performs the functions of the crown, jumping digital hours and minutes on rotating cones, and retrograde linear minutes.  The timepiece measures 46mm at its longest point.