====== Eterna 1470 ======
[[Eterna]] **Cal. 1470** was one of a family of [[automatic]] watch movements produced in the 1960's.

===== Overview =====
[[ETA]] was one of the three firms "chosen" to develop advanced [[automatic]] watch movements by [[Ebauches SA]], thanks in part to their history with [[Eterna]]. The chief designer at ETA, [[Heinrich Stamm]], had created many of the company's important watch movements, and was famous for the [[Eterna-Matic]] line of watches.

Cal. 1470 was a full-size [[ball bearing]] [[automatic]] movement.

===== Technical Details =====
Cal. 1470 measures 4.55 mm thick, both in date and non-date versions. Both 12.5 ligne and 13 ligne variants were produced.

All have 21 jewels, operate at 21,600 A/h, and have 44 hour power reserve.

Cal. 1470 (and the similar Cal. 1471) share the ratchet, setting, pawl winding, and auxiliary reversing wheel with the predecessor [[Eterna 1438]]. It is unrelated to the contemporary [[Eterna 1466]] automatic family.

===== Variants =====
Cal. 1470 one of a family of automatic movements.

All movements use suffix "K" to signify Kif-Ultraflex shock protection.

  * Eterna 1470 - 12.5 ligne
    * Eterna 1480 - date
  * Eterna 1471 - 13 ligne
    * Eterna 1481 - date

===== See Also =====
  * [[Eterna-Matic]]


{{tag>Movements Eterna_calibres Automatic_movements}}