ETA 2892.2-771, Mainspring

• ETA original mainspring in factory sealed packaging.

• Fits ETA cal:
• 2890, 2890.2, 2892, 2892.2, 2892.A2, 2893.1, 2893.2, 2893.3, 2895.2, 2896, 2897
• Fits Omega cal: 1120

Data: ETA cal: 2892-A2

• 21 jewels, automatic wind, balance stop function, date.
• S: = 11,5''', 25,60 mm.
• H: = 3,60 mm.
• N: = 28.800.
• Power reserve: 42 h.

Versions:

• 2890: (1975-1983).
• 2890-9: Perpetual cal, (1990-2000).
• 2890-A9: Perpetual cal, (1999-2005).
• 2891-9: Perpetual cal, (1990-2000).
• 2891-A9: Perpetual cal, (1999-2005).
• 2892: Date, (1975-1983).
• 2892-2: Date, (1983-2000).
• 2892-A2: Date, (1999-).
• 2893-1: Double timezone, (2002-).
• 2893-2: Double timezone, 24 h, (2002-).
• 2893-3: Double timezone, large 24 h disc, (2002-).
• 2894-2: Chronograph, (1996-).
• 2895-1: Date, H: = 4,35 mm, (1997-2000).
• 2895-2: Date, H: = 4,35 mm, (1999-).
• 2896: Big date, H: = 4,85 mm, (2003-).
• 2897: Power reserve, H: = 4,85 mm, (2004-).