Junghans J97/2

 
Junghans J97/2

Junghans J97/2

Description

In the midst of the turmoil of World War II, the form movement J97 (here in the seven jewel version with suffix /2) appeared on the market.

As you can easily see, it is a very simple pillar construction with stamped plates.

base plate

base plate

You cannot expect many bearing jewels here, only the balance wheel bearing contains rubies (4 of them). Together with the ellipsis of the balance and the two lever pallets it totals to seven jewels.

The other bearings are brass bushings, other versions of this movement with more jewels simply replaced then with rubies.

gear train

gear train

The gear train follows the usual standard with directly driven center minute wheel, third wheel, decentral seconds wheel at 6 o’clock and finally the steel escape wheel.

It’s a bit astonishing, that this movement, although made to cheap, uses a true pallet lever escapement.

side view of the gear train

side view of the gear train

The J97/2 already uses a screw-less anular balance with a small diameter. Of course, it is not yet shock protected.

The balance beats with 18000 A/h and can be regulated with a long regulator arm on the balance wheel cock.

Junghans J97/2: Dial side

Junghans J97/2: Dial side

It’s a bit dissatisfying, that on the dial side, only a simple rocking bar winding system is used, but at least the ratchet, which is located on the inner side of the base plate, is pretty well executed.

A nice detail are the four large screws: They attach the four pillars of this pillar movement to the base plate.

Technical data

Manufacturer:Junghans
Caliber:J97/2
Caliber base:Junghans J97
Size:8 3/4 x 12''' (measured: 20,0 x 26,4mm)
A/h:18000
Number of jewels:7
Balance types: Nickel anular balance (two legs)
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
Construction type:pillar construction
Winding mechanism:rocking bar winding system
Setting lever spring:2 hole(s)
Features:
  • s (decentral seconds)
References: Feilner: 44 4022
Flume: K1 -
Production years:1940-1950
Inventory number:21032

Usage gallery

Junghans gents watch (dial missing)

Junghans gents watch (dial missing)

This movement and case is donation from Mario to the movement archive. Thank you very much for your great support!