Omega 480-1208, Main spring

• Manufacturer: Prima, no: 135 D 21

• Fits cal: 480, 481, 482, 483

• H: 1,35
• D: 5,5
• F: 0,065
• L: 210

Versions:

• 480: screw balance, Kif-Duofix.
• 481: screw balance, Kif-Duofix.
• 482: flat balance ring, Kif-Duofix.
• 483: flat balance ring.
• 484: flat balance ring, new main spring.
• 485: flat balance ring, adjustable stud carrier, 21600.