When Ronda movements with pallet lever movements were still marked with “RL” instead of “RAX”, this movement was made. Despite the “Antichoc” marking on the dial, it does not use a balance shock protection, but the balance uses plastic bearings! For reaching the magic number of seventeen jewels, it uses lots of deck jewels, at least one of them sealed in a kind of chaton.
For quick releasing of the mainspring, it uses a seperate bearing, which can be released easily.
|Number of jewels:||17|
Nickel anular balance|
|Balance bearing / direction hairspring:||Counterclockwise|
|Adjust mechanism:||Hairspring key|
|Size:||6 3/4 x 8'''|