12”’ | Automatic | Swiss Lever | Sweeping Seconds |

Remarks:

• Automatic with unidirectional winding
• Base movement: Ronda 6061
• Date quick setting by moving the hands back. The date disk jumps forward by 1 day in 30-minute increments

• Listing ID: 4146
• Manufacturer / Brand: Ronda
• Caliber: 2238
• Size in French Lignes: 12'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 17
• Balance Position: Left (240 - 360°)
• Shock Protection: Incabloc
• Beats per hour: 21,600
• Balance Type: ?
• Power Reserve: Unknown
• Production Period: Probably around 1975 - 1980
• Identification: Movement marked SWISS 2238
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-15#post-2672599
• Country: Switzerland
• Contributor ©: Uhrforum.de member JackDaniels83