EB 8341 / Kienzle 074/20

EB 8341 / Kienzle 074/20
EB 8341 / Kienzle 074/20

Description

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.

version with 7 jewels and shock protection
version with 7 jewels and shock protection




dial side view
dial side view




dial side view of the 7 jewel version
dial side view of the 7 jewel version

Technical data

ManufacturerEB
Caliber8341
Number of jewels7/17
Escapementpin lever
BalanceNickel
Shock protection(s)KIF.P./non
Balance cock directionclockwise
Hairspring studmoveable
Regulator typeHairspring key
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Large driving wheel, Mainspring barrel
FeaturesSCD
FunctionsHour, minute, second
Beats per hour18000
Size7'''
Image in Flume Werksucher K3 60
Factsheet

Usage gallery