Ronda 5131
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| Ronda 5131 |
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Description
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.
Technical data
| Manufacturer | Ronda |
| Caliber | 5131 |
| Number of jewels | 17 |
| Escapement | Anchor with pallets |
| Balance | Nickel |
| Shock protection(s) | none |
| Balance cock direction | counterclockwise |
| Hairspring stud | moveable |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel, Mainspring barrel |
| Functions | Hour, minute |
| Beats per hour | 21600 |
| Size | 63/4 x 8''' |
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| Factsheet |
Usage gallery
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| Jasmin |
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