Vintage clock design by Dietrich Lubs following the Braun principles of visual sophistication, rationality and geometrical simplicity developed initially by Hans Gugelot, Fritz Eichler and Otl Aicher (all from Ulm College for Design) and later by Dieter Rams.
'Three rules seem to govern every Braun design - a rule of order, a rule of harmony, and a rule of economy.' Richard Moss, Industrial Design Magazine 1962