Lorsa 514A

 
Lorsa 514A

Lorsa 514A

Description

The french Lorsa caliber 514A is a ladies’ form movement, which is described in the literature with 5 14 lignes, but measures 5 34 lignes instead.

Technically, it is like any other form movement of the early 1970ies; it has got a kind of Trishock shock protection system (unusual for french movements), seventeen jewels (and on the dial side it was already prepared for additional cap jewels) and a yoke winding mechanism

As you can clearly see on the pictures, those watches had to be constructed to be tortured pretty hard, since in those times, a watch was already a consumer tool which was not cared for too much anymore.

version with RUFA-Antishock shock protection

version with RUFA-Antishock shock protection

Lorsa 514A dial side

Lorsa 514A dial side

dial side, version with RUFA-Antishock shock protection

dial side, version with RUFA-Antishock shock protection

Technical data

Manufacturer:Lorsa
Caliber:514A
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): Ruby-Shock
Rufa-Anti-Shock
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
Winding mechanism:yoke winding system
Setting lever spring:4 hole(s)
Functions:hour, minute
A/h:18000
Size:5 1/4 x 8 1/2''' (measured: 12,5 x 19,0mm)
Literature: Flume: 1962 28

Usage gallery

Isoma ladies' watch

Isoma ladies' watch

Juta ladies' watch  (dial only)

Juta ladies' watch (dial only)

Links