The Zeitwerk Luminous is the second generation of the legendary Zeitwerk model first introduced by A. Lange & Söhne in 2009. With its daring and technically advanced digital display system via the “Time Bridge”, the Zeitwerk demonstrates the sophistication of German engineering. A testimony to form following function, the tastefully oversized case is necessitated by Lange’s use of a remontoire for a secondary power source to deliver the energy needed to power the three large time-telling discs. The Zeitwerk Luminous sports a smoky grey transparent dial, which replaced the solid silver dial on the original model. This change gives the wearer the ability to see through the dial to the time discs below, as well as allowing the discs themselves the opportunity to recharge during the day so that at night, the super Luminova-coated numerals shine brightly in the dark. Number 46 of a limited number of 100, the present example retains its original factory finish and is a jewel to behold. The dial with the innovative “Time Bridge”, up and down indicator, and subsidiary seconds sub-dial, all add a rich, stylish feel to the watch. In immaculate condition, this highly desirable example includes its original inner and outer boxes, leather folio, and guarantee papers.