![Longines 12.68Z-224, Fourth wheel](http://urdelar.se/cdn/shop/files/0000_longines_7_68fabfec-dc09-4fbc-b76c-b4722e8e6cd3_{width}x.jpg?v=1708257297)
Longines 12.68Z-224, Fourth wheel
- LONGINES original part, NOS without factory packaging.
- Fits cal: 12.68Z
Versions:
- 12.68Z: sub second, H=4,25 mm.
- 12.68ZS: sweep second, H=5,45 mm.
- 12.68Z: Quantieme, calendar, sub second, H=5,10 mm.
- 12.68Z: Stopseconde, "chronograph", H=6,10 mm.
Each version with flat or Breguet hairspring, no shock protection, shock resist or incabloc.