Judex 122

 
Judex 122

Judex 122

Description

This difficult to identify, since nowhere marked Judex 122 is a 10 1/2 ligne pallet lever movement, which was made in France in the 1940s.

Construction-wise it has no oddities at all, which is almost a bit odd.

base plate

base plate

As you can see on the base plate, all important bearings contain rubies. Those of the minute wheel and mainspring barrel don’t need one, because they turn too slow and have enough torque, so there’s no real need for a friction- and war reducing ruby.

gear train

gear train

The gear train is textbook like: The mainspring barrel drives the center minute wheel, followed by third wheel, escape wheel at 6 o’clock (which carries the decentral seconds hand on the dial side) and steel escape wheel.

side view of the gear train

side view of the gear train

The two leg screw balance is not yet shock protected. It regularts a swiss type pallet lever movement and beats slowly with 18000 A/h. The adjustment happens on the hairspring key directly.

Judex 122: Dial side

Judex 122: Dial side

Also on the dial side, there’s the usual image: On the right the yoke winding system, on the left the cap jewel of the escapement wheel bearing and at 6 o’clock the axle of the seconds wheel, which carries the decentral seconds hand.

Technical data

Manufacturer:Judex
Caliber:122
Size:10 1/2''' (measured: 23,2mm)
A/h:18000
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance (two legs)
Shock protection(s): none
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
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:2 hole(s)
Features:
  • s (decentral seconds)
References: Flume: 1944 14
Inventory number:21006

Usage gallery

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