11 1/2”’ | Hand Wind | Swiss Lever (Plastic) | Direct Sweeping Seconds |

• Many plastic parts, including the escapement
• Movement family:
  • Tissot 2250: -, first generation
  • Tissot 2251: -, second generation (difference to first generatio unknown)
  • Tissot 2270: date, first generation
  • Tissot 2271: date, second generation (difference to first generatio unknown)
  • Tissot 2280: date, day, first generation
  • Tissot 2281: date, day, second generation (difference to first generatio unknown)
• Autolub / Sytal / Astrolon: trademarks for the family of Tissot plastic movements
  Autolub = Auto (self) lubricating
  Sytal = Système total d’autolubrification

• Listing ID: 6686
• Manufacturer / Brand: Tissot
• Caliber: 2251
• Size in French Lignes: 11 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: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 1
• Setting Lever Screw/Pin Position: None (Split Stem)
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Tissot specific
• Beats per hour: 18,000
• Balance Type: Gold-plated nickel?
• Power Reserve: Approx. 40 hours
• Production Period: 1971+
• Identification: Movement marked with Tissot logo. Tissot 2250 and 2270 listed in the addendum to the Flume K3 catalog from 1972.
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)