12”’ | Automatic | Swiss Lever | Direct Sweeping Second |

Remarks:

• Automatic with bidirectional winding
• First automatic movement from PUW
• Movement family:
  • PUW 54A: Sweeping seconds
  • PUW 55A: Sweeping seconds, small date date
  • PUW 54B: Sweeping seconds, automatic modified
  • PUW 55B: Sweeping Seconds, small date, automatic modified
  • PUW 57: Sweeping seconds, automatic modified
  • PUW 59: Sweeping Seconds, big date, automatic modified

• Listing ID: 1153
• Manufacturer / Brand: PUW
• Caliber: 54A
• 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...: None
• Jewels: 25
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Incabloc
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 40 hours
• Production Period: 1956 - 1960
• Identification: Movement marked PUW 54. Listed in Flume K2 catalog from 1962.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-49#post-6586505
• Country: Germany
• Contributor ©: Uhrforum.de member buchenhain