Omega 600-1105, Click spring

• OMEGA original, new without factory packaging.
  

• Omega part number: 240-1105
  

• Fits cal: 600, 601, 602, 610, 611, 613

Versions:

• 600: 17 jewels, swan neck regulator.
• 601: 17 jewels, exenter regulator.
• 602: 17 jewels, chronometer.
• 610: 17 jewels, swan neck regulator, date.
• 611: 17 jewels, exenter regulator, date.
• 613: 17 jewels, quickset date.