====== Nomos Epsilon ======
{{wst>image_r|Nomos_Epsilon_ZB|Nomos Epsilon (dial side)}}
{{wst>image_r|Nomos_Epsilon|Nomos Epsilon}}
The **Epsilon** (ε) is the first [[automatic]] movement from [[Nomos]]. It was introduced in [[2006]] and remains in production [[as of 2019]], even though the successor [[DUW 5001]] has entered production.

===== 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]]. Both movements feature a gear train similar to the classic [[Peseux 7001]], but placed in a new enclosure based on the classic [[Glashütte]] [[three-quarter plate]] design. Nomos updated many of the components, adding [[hacking seconds]], and completely reworked the finishing with [[rhodium]]-plated surfaces, [[blued screws]], [[Glashütte Stripes]], and Glashütte [[solar grinding]] or [[Langeleist-Perlage]].

The automatic movements consist of [[Nomos Epsilon|Epsilon]], [[Nomos Zeta|Zeta]] (with [[date window|date]]), and [[Nomos Xi|Xi]] (with [[GMT]] or [[world time]] disc). All three movements measure 13¾ [[ligne]] (31 mm) in diameter, but Epsilon is thinnest at 4.3 mm. Although similar to [[Nomos Alpha]], Epsilon uses the wider main plate of the [[date]] models to make room for the [[automatic winding]] [[rotor]]. moving the rotor to the edge allows the movement to remain quite thin.

A direct successor to the Nomos Epsilon was introduced in [[2018]], the [[DUW 5001]] featuring the [[Nomos Swing System]]. The Epsilon movement continues in use, however, [[as of 2019]].

This movement is officially named using the Greek letter "ε", but Nomos often writes it as "Epsilon".

===== Epsilon Version 2 =====
The first version of the Epsilon movement had 24 [[jewels]]. In May [[2007]], Nomos switched to a new version with 26 jewels. One wheel in the automatic winding system was set in two extra jewels, allowing better winding efficiency and durability thanks to reduced friction.

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

===== See Also =====
This movement is part of a family of Nomos movements produced since [[2005]]. The movement is partially made [[in-house]], though the [[assortment]] is supplied by a third-party. It was supplanted by the in-house [[Nomos Swing System]] family starting in [[2014]].

    * [[Nomos Alpha]] Hand winding
    * [[Nomos Beta]] Hand winding, date
    * [[Nomos Delta]] Hand winding, date, power reserve indicator
    * [[Nomos Epsilon]] Automatic
    * [[Nomos Zeta]] Automatic, date
    * [[Nomos Gamma]] Hand winding, power reserve indicator
    * [[Nomos Xi]] Automatic, GMT or world time
    * [[Nomos Alpha.2]] Hand winding, 2 hands


<WRAP ud ud_mov>

**Manufacturer:**
  * [[Nomos]]

**Description:**
  * [[Self-winding]] movement
  * [[Shock protection]]
  * [[Escapement]] stone lever
  * [[Yoke winding system]]

**Functions:**
  * [[Small seconds]]

**Data:**
  * 13¾ [[ligne]]s
  * D 31 mm, H 4.3 mm
  * 26/24 [[jewels]]
  * 21,600 A/h
  * Bi-directional winding [[central rotor]] with Wippe
  * Power reserve About 43 hours

**Extras:**
  * [[Triovis fine-regulation]]
  * Glashütte [[solar grinding]] on ratchet and crown wheel
  * Glashütte [[three-quarter plate]]
  * [[Glashütte ratchet]]

**Production period:**
  * Production [[2006]]-Present
  * Successor [[DUW 5001]]
</WRAP>

{{tag>Movements Automatic_movements Nomos_calibres}}