12 1/2”’ | Hand Wind | Pin Lever | Indirect Sweeping Seconds |

Remarks:

• Rocking bar winding
• Click on the dial side
• Balance bridge instead of cock
• Produced by different manufacturers over time:
  • Thiel as Thiel Chronos
  • UMF as UMF Chronos
  • UMF as UMF 44

• Listing ID: 20118
• Manufacturer / Brand: Ruhla UMF / Thiel
• Caliber: Chronos / 44
• Size in French Lignes: 12 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Pin Lever
• Date, Day, Month...: None
• Jewels: 0
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 40 hours
• Production Period: 1950 - 1963 (all generations)
• Country: Germany
• Identification: As Thiel Chronos listed in the Flume K1 catalog from 1958 (w/o picture), as UMF 44/CHronos in the Flume K2 catalog from 1962 (w/o picture).
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)
• External Link 2: https://watch-wiki.org/index.php?title=Werkfamilie_Chronos