Longines 19AS-420, Crown wheel

• LONGINES original part from a NOS movement.
  

• Fits cal: 8.68N, 19A, 19AD, 19AS, 19ASD
  

Versions:

• 19A:       sub second.
• 19AD:    sub second, date.
• 19AS:    center second.
• 19ASD: center second, date.