Ronda 4220.B Technical Instructions - Specification and Assembly
Technical instructions and complete specifications for the Ronda 4220.B quartz watch movement. This workshop manual provides all essential data for service technicians and watchmakers, including precise dimensions (Ø 28.60 mm), battery specification (Nr. 395 with 48-month autonomy), and movement height of 4.40 mm. Performance specifications detail torque requirements, operating temperature range from 0°C to 50°C, magnetic field resistance, and shock resistance ratings. The assembly section provides 18 step-by-step instructions covering installation of the main plate, bridges, wheels, stem, lever, pusher, stator and rotor components, making this an essential repair and maintenance reference for anyone working with this movement.
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 9
- Size
- 5.8 MB
- Category
- Watchmaking