Felsa 302

 
Felsa 302

Felsa 302

Description

The Felsa 320 is one of the typical larger sized ladies’ watch form movements, which were made in the 1940ies.

version in nickel silver

version in nickel silver

During its production time, it was available in a few versions, which were all functionally the same, but differed in their execution.

base plate

base plate

As the base place shows, all important bearings contain synthethic rubies. Together with the other functional rubies, their total number is 15, which was the optimal number at that time. More jewels were pretty uncommon.

gear train

gear train

The tonneau shaped construction allowed the use of a large mainspring barrel and a large balance, while the gear train was very small and stocky.

The gear train construction was typical of that time: The mainspring barrel drives the center minute wheel, followed by the third wheel with a small and the second wheel with an even smaller diameter. Finally, there’s the compareably large steel escape wheel.

side view of the gear train

side view of the gear train

To free more space for the escape wheel, it runs partially below the second wheel bearing.

The two-leg screw balance is not shock protected, of sure. It beats with 18000 A/h, whose exact frequency can be adjusted with a long regulator arm and scale on the balance cock.

The Felsa 302 uses a swiss pallet lever escapement with transparent pallets. No other manufacturer used transparent pallets so often as Felsa did.

Felsa 302: Dial side

Felsa 302: Dial side

During its construction time, the dial side was also reworked a bit, which you can see on the more or less large cutting on the mainspring barrel.

dial side, other version

dial side, other version

Of course, this movement has got a yoke winding system, and as usual, a partial minute dial was engraved, a tool for adjusting the movements outside the case and without dial.

Technical data

Manufacturer:Felsa
Caliber:302
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:2 hole(s)
Functions:hour, minute
A/h:18000
Size:5 3/4 x 8 3/4''' (measured: 12,8 x 18,9mm)
Literature: Flume: 1942 30
Inventory number:19008

Usage gallery

Dicker ladies' watch

Dicker ladies' watch

Fellow-Watch ladies' watch

Fellow-Watch ladies' watch

This movement in nickel silver together with its Fellow-Watch ladies’ watch is a donation from Christoph Reiner. Thank you very much for your kind support of the movement archive!