12 3/4”’ | Automatic | Pin Lever | Small Seconds |

Remarks:

• Kienzle’s only family of automatic movements, called ‘Volksautomatik’ (peoples’s automatic)
• Pin lever with ruby pins
• Rocking bar winding
• Click on the dial side
• Movement family:
  • Kienzle 57/17: small seconds, no date, 17 juwels
  • Kienzle 57/17a: indirect sweeping seconds, no date, 17 jewels
  • Kienzle 57/19: indirect sweeping seconds, no date, 19 jewels
  • Kienzle 57/21, 57/21a: small seconds, no date, 21 juwels
  • Kienzle 57/22: no seconds, date, 21 juwels
  • Kienzle 58/21: no seconds, date, 21 juwels, modified balance

• Listing ID: 21059
• Manufacturer / Brand: Kienzle
• Caliber: 57/21
• Size in French Lignes: 12 3/4'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 21
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Kienzle
• Beats per hour: 18,000
• Balance Type: Gold-plated nickel?
• Power Reserve: Approx. 40 hours
• Production Period: 1956 - 1963 (whole family)
• Country: Germany
• Identification: Rotor marked with Kienzle and 57/21. Listed in the Flume K2 catalog from 1962.
• Contributor ©: Uhrforum.de member buchenhain
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-80#post-10934399