====== DUW 5101 ======
The **DUW 5101** is an [[automatic]] movement with [[date]] from [[Nomos]]. It is an evolution of its predecessor, [[Nomos Zeta]], and was introduced in [[2017]].

===== 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, including the first [[automatic]] Swing System movement, [[DUW 5201]].

Nomos introduced the [[Nomos Swing System]] slowly, beginning with [[hand winding]] movements and the slower-selling [[world time]] [[DUW 5201]]. Only once production had ramped up in [[2017]] did Nomos bring the Swing System to a mainstream automatic movement, DUW 5101. This [[automatic]] movement has [[small seconds]] at 6 00 and a [[date]] wheel. 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 26 [[jewel]]s.

The DUW 5101 movement adds an unusual and patented date display like the [[Nomos Beta]]. Typically, a [[date wheel]] and associated gears are stacked below the [[mainplate]] between the rest of the watch movement and the [[dial]]. However, this makes these movements more bulky and thick. Instead, Nomos places the date ring around the movement, with the switching mechanism integrated into the movement itself, making the DUW 4101 nearly as thin as non-date versions at 4.3 mm. However, this adds to the diameter of the movement, bringing it to 31 mm.

Calibre DUW 5101 is a replacement for the [[Nomos Zeta]] movement, with which it shares many components. Although the DUW 5101 was introduced in [[2017]], the Zeta remains in production [[as of 2019]].

===== Applications =====
  * [[Nomos Ahoi date]]
  * [[Nomos Club automatic date]]
  * [[Nomos Ludwig automatic date]]
  * [[Nomos Tangomat date]]

===== 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:**
  * [[Automatic]] movement

**Functions:**
  * Hours, minutes
  * [[Small seconds]]
  * [[Date]]

**Data:**
  * 13.75 [[ligne]]s
  * Ø 31 mm, H 4.3 mm
  * 26 [[jewels]]
  * [[Power reserve]] 42 hours

**Production period:**
  * Production [[2017]]-Present
  * Predecessor [[Nomos Zeta]]
</WRAP>

{{tag>Movements Automatic_movements Nomos_calibres}}