NOMOS Glashütte DUW 4401

The DUW 4401 was the first NOMOS caliber to feature the in-house built NOMOS Swing System escapement, distinguished by its blue balance spring. Introduced in 2014, it represents a landmark achievement in NOMOS's pursuit of manufacturing independence. Features patented date and power reserve mechanisms, manual winding, movement individually numbered on the three-quarter plate, fine adjustment in six positions, Glashütte sunburst decoration and NOMOS perlage. Powers the Metro and Tangente Datum Gangreserve models.