====== ETA A07.171 ======
{{wst>image_cr|ETA|A07.171}}

**Calibre A07.171** is an [[automatic]] [[GMT]] movement from [[ETA]]. It was introduced in [[2006]] and remains in production [[as of 2019]].

===== Overview =====
Mechanical movement in the series [[ETA Valgranges]] with [[self-winding]], ball-bearing [[rotor]], unidirectional winding, 48 hours [[power reserve]], [[hacking seconds]] device and [[second timezone]].

The movements of the series //Valgranges// are an evolution of the famous Valjoux calibre [[ETA 7750|7750]] (hence the name //Valgranges//, from "Granges" or [[Grenchen]]) and with 16½ [[ligne]]s offer a larger diameter. Thus ETA also provides appropriate large-scale movements for the larger wristwatches that are increasingly common in our days.


<WRAP ud ud_mov>

**Description:**
  * [[Self-winding]] movement with unidirectional winding [[rotor]]
  * [[Incabloc]] [[shock protection]]
  * [[Swiss lever escapement]]
  * [[Yoke winding system]]
  * ETACHRON regulatorsystem
  * [[Côtes de Genève]], [[Perlage]]

**Functions:**
  * Hours, minutes
  * [[Central seconds]] with [[hacking seconds]]
  * Date with [[quickset date feature]]
  * [[Dual time-zone]], 24-hours hands

**Data:**
  * 16½ [[ligne]]s
  * Ø 36.6 mm, H 7.9 mm
  * 24 [[jewels]]
  * 28,800 A/h
  * [[Power reserve]] 48 h

**Production period:**
  * Since [[2006]]
</WRAP>

{{tag>Movements Automatic_movements Valjoux_calibres}}