ETA 2390-724, Balance staff

• ETA original balance staff, not in factory packaging.
  

• For all shock protected balances.

• Fits cal: 2390, 2391, 2408, 2409, 2450, 2451, 2452, 2453, 2454, 2460, 2472, 2474

Versions: 10,5 - 11,5''' all: 18.000 A/h.

• 2390: 10,5''' manual wind, base caliber manual wind.
• 2391: 11,5''' manual wind.
• 2406: 11,5''' manual wind, date.
• 2408: 11,5''' manual wind, new date mechanism.
• 2409: 11,5''' manual wind, date.
• 2450: 10,5''' automatic, base caliber automatic.
• 2451: 11,5''' automatic.
• 2452: 11,5''' automatic, date.
• 2453: 11,5''' automatic, modified rotor.
• 2454: 11,5''' automatic, date, modified rotor.
• 2456: 10,5''' automatic, date.
• 2460: 11,5''' automatic, date.
• 2471: 11,5''' automatic.
• 2472: 11,5''' automatic, date, new date mechanism.
• 2474: 11,5''' automatic, date.