Kaiser K48

 
Kaiser K48

Kaiser K48

Description

In the early 1950ies, the pin lever movement Kaiser K48 was launched in Villingen, Germany. With a diameter of 10 12 lignes, it was like many other pin lever movements of that time with the only difference, that it already had got a central center second hand.

main plate

main plate

The movement was pretty raw and undecorated. The bearings were just made of brass and didn’t contain jewels, except the balance, which was beared in two pairs of jewels. The fifth jewel was the upper bearing of the central second gear.

gears and trains

gears and trains

The construction of the K48 is like on all other pin lever movements. Even the lever bearing was on a U-type cutout and so could be roughly adjusted by bending it.

The third wheel has got a longer axle, which carriers a gear on top of the upper main plate. This gear drives the central second wheel, which is secured by a friction spring to avoid a jumping second indication.

Kaiser K48 dial side

Kaiser K48 dial side

On the dial side you can see the rocking bar winding mechanism and the click mechanism, which is located under a black bridge. The click wheel of the mainspring barrel is just stacked, not secured by a screw.

The mounting of the dial is pretty odd: At “12” and “6”, there’s a flap, into which the dial is screwed.

Technical data

Manufacturer:Kaiser
Caliber:K48
Number of jewels:5
Escapement:Pin lever
Balance types: Nickel anular balance
Shock protection(s): none
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
  • center second pinion
Construction type:pillar construction
Winding mechanism:rocking bar winding system
Setting lever spring:3 hole(s)
Features:SCI
Functions:hour, minute, second
A/h:18000
Size:10 1/2''' (measured: 23,4mm)
Literature: Flume: 1952 27

Usage gallery

Kaiser mens' watch

Kaiser mens' watch

related movements