17 1/2”’ | Hand Wind | Pin Lever | Small Seconds |

Remarks:

• Rocking bar winding
• Click on the dial side
• Balance bridge instead of cock
• Produced by different manufacturers over time:
  • 1933-1945: Thiel, as Thiel Vineta, Thiel Vineta slim Champion, Thiel Norma
  • 1946-1952: under Russian control
  • 1952+: UMF, as UMF Norma, UMF 8

• Listing ID: 19454
• Manufacturer / Brand: Ruhla UMF / Thiel
• Caliber: Norma / Vineta / 8
• Size in French Lignes: 17 1/2''' (17''' according to manufacturer)
• Size range mm largest diameter: 31 - 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Pin Lever
• Date, Day, Month...: None
• Jewels: 0
• Setting Lever Screw/Pin Position: Left
• Balance Position: Left (240 - 360°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 32 hours
• Production Period: 1933 - 1963 (all generations)
• Country: Germany
• Identification: Dials of pocket watch marked with Ruhla UMF NORMA. As Thiel Vineta/Norma listed in the Flume K1 catalog in the part from 1942, as UMF 8/Norma in the Flume K2 catalog from 1962.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)