Longines 19AS-225, Fourth wheel

• LONGINES original part in very good used condition.
  

• Fits cal: 19AS, 19ASD
  

Versions:

• 8.68N:    base caliber, manual wind, sub second.
• 19A:       automatic wind, sub second.
• 19AD:    automatic wind, sub second, date.
• 19AS:     automatic wind, center second.
• 19ASD:  automatic wind, center second, date.