====== ETA 2890 ======
**Cal. 2890** (and similar **Cal. 2892**) is an [[ultra-thin]] [[automatic]] watch movement produced by [[ETA]] from [[1975]] to [[1983]]. It was replaced by [[ETA 2892-2]].

===== Overview =====
ETA was one of the premier automatic watch movement makers of the 1950's and 1960's, and were allowed by [[Ebauches SA]] to develop a modern, ultra-thin movement for the [[1963]] [[Eterna-Matic 3000]]. This movement, [[Eterna 1466|Cal. 1466U]], featured many innovations, including a modular, one-plate design with the automatic winding works sunk into a depression at the center of the gear train. That movement was updated to become [[Eterna 1504|Cal. 1504]], operating at 28,800 A/h.

As ETA emerged as the strongest movement maker for the entire Swiss watch industry during the [[quartz crisis]], Cal. 1504 was updated to become **Cal. 2890** and, with [[quickset date]], **Cal. 2892**. Like their [[Eterna]] predecessors, they use a ball-bearing [[rotor]] and feature efficient "Eterna" gears for a power reserve of 42 hours.

Cal. 2890/2892 remained at 12.5 ligne (28 mm) like its predecessors, but it was replaced in [[1983]] by the narrower 11.5 ligne [[ETA 2892-2]], predecessor of today's [[ETA 2892A2]].

===== Clones =====
  * [[Soprod]] [[Soprod 9094|9094]] - with day dial, power reserve indicator, and retrograde date indicator

===== See Also =====
  * [[Eterna 1504]], the predecessor movement
  * [[ETA 2892-2]], the successor movement


<WRAP ud ud_mov>

**Description:**
  * [[Self-winding]] movement
  * Incabloc [[shock protection]]
  * [[Escapement]] Stone lever
  * [[Yoke winding system]]

**Functions:**
  * [[Central seconds]]
  * Rapid calendar advance
  * [[Hacking seconds]]
  * Optional [[quickset date]]

**Data:**
  * 12½ [[ligne]]s
  * D 28.2 mm, H 3.6 mm
  * 21 [[jewels]]
  * 28,800 A/h
  * Power reserve 42h

**Production period:**
  * [[1975]]-[[1983]]
</WRAP>

{{tag>Movements ETA_2890_calibres ETA_calibres}}