In 2014, the NOMOS caliber DUW 4401 started a new era at NOMOS Glashütte: It was the first caliber to feature our proprietary escapement, the NOMOS swing system, and so served as a declaration of independence from the large corporate groups that dominate the market. It is a sensation in the world of fine mechanical watches since this pacesetter and heart of a caliber is incredibly difficult and highly complex to produce.

This movement features two patented NOMOS complications within—the date and power reserve indicators. The latter is incredibly practical, and reminds the wearer when to rewind the watch. One each of the Metro and Tangente models are powered by DUW 4401.


In-house built caliber
DUW 4401
in-house built NOMOS caliber with manual winding, date and power reserve indicator
movement height
2.8 mm
14 ¼ lines (32.1 mm)
Power reserve
up to 42 hours
Special qualities

patented date mechanism
patented power reserve indicator
NOMOS swing system
tempered blue balance spring
stop-seconds mechanism
Glashütte stopwork
Glashütte three-quarter plate
adjusted in six positions
23 jewels
tempered blue screws
rhodium-plated surfaces with Glashütte ribbing and NOMOS perlage
ratchet and crown wheel with Glashütte sunburst