PUW 1075E

 
PUW 1075E

PUW 1075E

Description

The PUW caliber 1075E is a common ladies’ watch form movement of the usual size of 5 12 lignes. It was since the mid 1960ies one of the successors of the PUW 74. Since it passed the official quality checks in 1967, you can assume, that it appeared in the mid 1960ies.

The only difference between this movement and its precessor PUW 74 has got a jewel beared minute wheel instead of the cap jewels of the escapement wheel.

The three leg annular balance on the specimen shown here is beared in two Incabloc shock protection bearings.

It seems, like this movement was available in two versions, one with distinct mainspring barrel bridge and one, like displayed here, only with one single bridge, which coveres gear train and mainspring barrel.

PUW 1075E dial side

PUW 1075E dial side

On the dial side, you see the yoke winding system and the cap jewel of the escapement wheel. The housing of the cap jewel is a bit odd, since it offers space for a second cap jewel, but that space is not used.

Technical data

Manufacturer:PUW
Caliber:1075E
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
Adjust mechanism:Hairspring key
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Construction type:solid construction
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
Functions:hour, minute
A/h:21600
Size:5 1/2''' (measured: 15,5 x 13,2mm)
Literature: Flume: K3 77

Usage gallery

Blumus ladies' watch

Blumus ladies' watch

Many thanks go to G.Müller for the donation of the watch and movement!