Ronda 5131

 
Ronda 5131

Ronda 5131

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:Pallet lever
Balance types: Nickel anular balance
Shock protection(s): none
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
Functions:hour, minute
A/h:21600
Size:6 3/4 x 8'''

Usage gallery

Jasmin ladies' watch

Jasmin ladies' watch