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  Manufacturer: ETA (Switzerland)


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  Caliber Number: 2834-2


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  Type: Automatic, self-winding mechanical


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  Lignes: 11 1/2’’’


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  Overall Diameter: 29 mm


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  Height: 5.05 mm

Performance:

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  Jewels: 25, reducing friction and wear for smooth operation.


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  Power Reserve: ~38 hours when fully wound.


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  Vibrations per Hour (vph): 28,800 (4 Hz), ensuring a smooth sweeping second hand.


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  Lift Angle: 50°

Construction:

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  Materials: Brass (main plate and bridges)


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  Rotor: Ball-bearing supported, ensuring efficient bi-directional winding.


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  Hairspring: Nivarox 2, known for its resistance to temperature and magnetic influences.

Functions:

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  Timekeeping: Central hours, minutes, and sweeping seconds.


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  Calendar Complications:
  
  
  
  • 
    Day of the Week: Full display at 12:00.
  
  
  • 
    Date: At 3:00 or 6:00, depending on the design.
  
  
  
  


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  Hacking Seconds: Yes, allowing precise time setting.


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  Hand-Windable: Yes, in addition to automatic winding.

Additional Features:

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  Shock Protection:
  
  
  
  • 
    Novodiac or Incabloc systems for impact resistance.
  
  
  
  


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  Regulator System: Etachron with a fine-timing device for precise adjustments.


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  Rotor Winding Direction: Bi-directional for optimal energy efficiency.

Country of Manufacture:

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  Swiss Made (Switzerland), ensuring premium craftsmanship and quality.