The french Lorsa caliber 514A is a ladies’ form movement, which is described in the literature with 5 1/4 lignes, but measures 5 3/4 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.
|Number of jewels:||17|
Nickel anular balance|
|Balance bearing / direction hairspring:||Counterclockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||4 hole(s)|
|Size:||5 1/4 x 8 1/2''' (measured: 12,5 x 19,0mm)|
Flume: 1962 28|