====== 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 [[Nomos Alpha|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 wheel]]s are decorated with a [[Glashütte sunburst]] pattern and [[blued]] screws are used. It features [[Glashütte stopwork]], [[Incabloc]] shock protection, and 23 [[jewel]]s.

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 =====
  * [[Nomos Metro date power reserve]]
  * [[Nomos Tangente date power reserve]]

===== 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


<WRAP ud ud_mov>

**Description:**
  * [[Hand winding]] movement

**Functions:**
  * Hours, minutes
  * [[Small seconds]]
  * [[Power reserve indicator]]
  * [[Date window]]

**Data:**
  * 14.25 [[ligne]]s
  * Ø 32.1 mm, H 2.8 mm
  * 23 [[jewels]]
  * [[Power reserve]] 42 hours

**Production period:**
  * Production [[2014]]-Present
  * Predecessor [[Nomos Delta]]
</WRAP>

{{tag>Movements Manual_winding_movements Nomos_calibres}}