Omega 1010-1157, Wig-wag pinion core

• OMEGA original part in very good used condition.
  

• Fits cal: 1010, 1011, 1012, 1020, 1021, 1022

Versions:

• 1010: automatic, 17 jewels, date.
• 1011: automatic, 23 jewels, chronometer, date.
• 1012: automatic, 23 jewels, date.
• 1020: automatic, 17 jewels, day, date.
• 1021: automatic, 23 jewels, chronometer, day, date.
• 1022: automatic, 23 jewels, day, date.
• 1030: manual, 17 jewels, date.
• 1035: manual, 17 jewels.