EB 8341 / Kienzle 074/20

EB 8341 / Kienzle 074/20 | 17jewels.info - The Movement Archive

EB 8341 / Kienzle 074/20


The EB 8341 is with a diameter of only 7 lignes (the official measurings are even only 6 3/4 lignes) a very small pin lever movement with a number of constructive oddities:
The non shock secured balance, more precisely the hairspring, is connected to a very unusually shaped movable stud. The pin lever is adjustable, too, the mainspring can be removed by just removing one screw and the complete winding mechanism is located below the plates!

As you can easily see, all these measures are very interesting in a constructive way, but for a watchmaker they are a nightmare, especially, since the movement builds pretty high and is made in pier construction.

On the 17 jewels specimen shown here, the balance axle is broken due to the missing shock protection.

EB 8341 / Kienzle 074/20: version with 7 jewels and shock protection

version with 7 jewels and shock protection

EB 8341 / Kienzle 074/20: EB 8341 dial side

EB 8341 dial side

EB 8341 / Kienzle 074/20: dial side view of the 7 jewel version

dial side view of the 7 jewel version

Technical data

lift angle:55°
Number of jewels:7/17
Escapement:Pin lever
Balance types: Nickel anular balance
Shock protection(s): KIF Protechoc
Balance bearing / direction hairspring:Clockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
  • lever
  • escape wheel, seconds wheel, third wheel, large driving wheel, mainspring barrel
  • SCD (direct center seconds)
References: Flume: K3 60
Mentioning in literature (years): 1968

Usage gallery

EB 8341 / Kienzle 074/20: Agon ladies' watch

Agon ladies' watch

EB 8341 / Kienzle 074/20: Kienzle ladies' watch

Kienzle ladies' watch