Glass, granite and steel, glass top, stone plinth of black granite. Plated, subsidiary engraved dial with blue hands and transparent dial for seconds with visible escapement, labelled 'Erwin Sattler München No. 23', in front marked 'Columna Temporis', reverse marked 'Sattler Cal. 1975'. H. 167 cm. Price list Erwin Sattler, 2014: 72.500 Euro.