DUW 4401
The DUW 4401 is a manually wound movement with date window and power reserve indicator from Nomos. It is an evolution of its predecessor, Nomos Delta, and was introduced in 2014.
Overview
The 2005 introduction of the Alpha movement family was an important turning point for Nomos. Although based on the preceding Nomos 1 TSP, it was largely constructed in-house rather than being a refinished ebauche. This was followed in 2006 by the Nomos Epsilon, the first Nomos movement with automatic winding. The next great leap forward for Nomos was the 2014 introduction of the Nomos Swing System, an in-house assortment, in movement DUW 4401. Over the next few years, this technology moved to other models in the Nomos movement family.
Introduced in 2014, the Nomos DUW 4401 movement is a manually wound movement with small seconds at 6:00 and a power reserve indicator at 1:00. Like other Nomos movements, it is made in a three-quarter plate design, plated with rhodium and decorated with Glashütte ribbing and perlage. The ratchet and crown wheels are decorated with a Glashütte sunburst pattern and blued screws are used. It features Glashütte stopwork, Incabloc shock protection, and 23 jewels.
The date wheel is placed outside the movement, as on the Nomos Beta, to reduce overall thickness. This allows the movement to be just 2.8 mm thick. The power reserve indicator is placed inside the main plate, requiring no additional thickness.
Calibre DUW 4401 replaced the Nomos Delta movement, with which it shares many components.
Applications
Movement Family
This movement is part of a family of Nomos movements produced since 2014. The movement is made in-house, including the Nomos Swing System.
- DUW 4401 Hand winding, date, power reserve indicator
- DUW 4101 Hand winding, date
- DUW 4301 Hand winding, power reserve indicator
- DUW 5001 Automatic
- DUW 5101 Automatic, date
- DUW 5201 Automatic, world time
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