ETA 213

 
ETA 213

ETA 213

Description

Probably from the 1920s, when wristwatches started to become popular, is the ETA 213, a midsize windup movement with cylinder escapement.

Its construction still reminds strongly of a pocket watch movement, however, there’s an oddity: The crown wheel has got no function at all, since the mainspring is wound up on the dial side, and the click only engages with the ratchet wheel on the movement side, and so, the crown wheel is free from any function.

base plate

base plate

The base plate reveals, that this movement is a little phony: On the top of the movement side, where it is visible, the gears for the third wheel, the fourth wheel and the cylinder wheel contain ruby bearings, but on the base plate, where the bearings are invisible, they are just simple drill holes.

gear train

gear train

The gear train is made after the common standard for a cylinder movement: Mainspring barrel, directly driven center minute wheel, third wheel, fourth wheel and cylinder wheel.

side view of the gear train

side view of the gear train

The sharp teeth of the cylinder wheel always interfere with the balance wheel, so that it cannot swing freely. The accurancy of that escapement system is pretty limited, on such a rather small movement, it can vary in a range of minutes per day.

ETA 213: Dial side

ETA 213: Dial side

On the dial side, you can see the old ETA hallmark. Besides this, this movement has got a well executed rocking bar winding system, which was very modern at that time.

Technical data

Manufacturer:ETA
Caliber:213
Number of jewels:7
Escapement:Cylinder
Balance types: Nickel anular balance
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction:
  • escape wheel
  • seconds wheel
  • third wheel, center minute wheel
  • mainspring barrel
Construction type:solid construction
Winding mechanism:rocking bar winding system
Setting lever spring:4 hole(s)
Functions:hour, minute
A/h:18000
Size:10 1/2''' (measured: 23,3mm)
Literature: Flume: 1942 26
Inventory number:19005

Usage gallery

anonymous ladies' watch

anonymous ladies' watch

This movement and watch is a kind donation from Christoph Reiner! Thank you very much for supporting the movement archive.