====== Nomos Beta ======
{{wst>image_r|Nomos_Beta_ZB|Nomos Beta (dial side)}}
{{wst>image_r|Nomos_Beta|Nomos Beta}}
[[Nomos]] **Beta** (β) is a [[manual winding]] movement with [[date display]]. It is an evolution of the predecessor [[Nomos 1 TSD]] and [[Nomos 1 TSDP|1 TSDP]] and was produced from [[2005]] until [[2016]].

===== 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]]. The gear train is similar to the classic [[Peseux 7001]], but was 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]].

Calibre Beta was released at the same time as [[Nomos Alpha]] (without [[date window|date]]) and [[Nomos Delta]] (with date and [[power reserve indicator]]). All three are hand-winding movements, as was the [[Nomos Gamma]] which followed in [[2007]]. In [[2006]], Nomos followed with a family of [[automatic]] movements, [[Nomos Epsilon|Epsilon]], [[Nomos Zeta|Zeta]], and [[Nomos Xi|Xi]], with similar features. Alpha is smaller than the others, however, at just 23.3 mm diameter and 2.6 mm thick.

The Beta movement adds an unusual and patented date display. 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 Beta and [[Nomos Delta|Delta]] nearly as thin as the [[Nomos Alpha|Alpha]], on which they are based.

For the [[Nomos Tangente Observatory|Tangente Observatory]], the date index is modified to function as a day/night display.

A direct successor to the Nomos Beta was introduced in [[2015]], the [[DUW 4101]] featuring the [[Nomos Swing System]]. The Beta calibre was phased out after this and removed from the catalog in [[2016]].

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

===== Applications =====
  * [[Nomos Club date]]
  * [[Nomos Tangente date]]
  * [[Nomos Tangente 38 date]]
  * [[Nomos Tangente Sport date]]

===== 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:**
  * [[Manual winding]] movement
  * [[Shock protection]]
  * [[Escapement]] stone lever
  * [[Yoke winding system]]

**Functions:**
  * [[Small seconds]]
  * [[Date display]]

**Data:**
  * 14½ [[ligne]]s
  * D 32.15 mm, H 2.8 mm
  * 23 [[jewels]]
  * 21,600 A/h
  * Power reserve About 42 hours

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

**Production period:**
  * Production [[2005]]-[[2016]]
  * Predecessor [[Nomos 1 TSD]], [[Nomos 1 TSDP]]
  * Successor [[DUW 4101]]
</WRAP>

{{tag>Movements Manual_winding_movements Nomos_calibres}}