The FE 233-66 is directly related to the caliber 233-60.
The rest of the construction is identical; the 233-66 uses a ring balance, which is beared in two Incabloc shock protection systems (which is a bit unusual for french movements), beats with only 18000 A/h and regulates a traditional pallet anchor movement. Technically, this movement, which was produced in the seventies, seems quite outdated, but it was still popular nevertheless.
The “decoration” of the bridges is quite crude, a typical sign of the 70ies.
|Number of jewels:||17|
Nickel anular balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||2 hole(s)|
Flume: K3N1 -|