The ETA 2836-2 is a robust and versatile automatic movement widely used in men's watches, known for its day-date functionality and reliable performance. It is a favorite for mid-range and luxury timepieces.

Technical Specifications:

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  Type: Automatic (self-winding) mechanical movement


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  Size:
  
  
  
  • 
    Lignes: 11 1/2’’’
  
  
  • 
    Diameter: 25.60 mm
  
  
  • 
    Height: 5.05 mm
  
  
  
  

Performance:

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  Jewels: 25, reducing friction and enhancing durability.


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  Frequency: 28,800 vibrations per hour (vph) (4 Hz), for smooth and precise second-hand motion.


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  Power Reserve: ~38 hours when fully wound.

Features:

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  Timekeeping:
  
  
  
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    Central hours, minutes, and sweeping seconds.
  
  
  
  


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  Calendar Complications:
  
  
  
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    Day: Full day display at the 3 o’clock position.
  
  
  • 
    Date: Located alongside the day display at 3 o’clock.
  
  
  
  


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  Self-Winding: Powered by wrist movement.


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  Hacking Seconds: Yes, for precise time setting.


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  Hand-Windable: Yes, for manual winding.


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  Hand Dimensions:
  
  
  
  • 
    Hour: 1.50 mm
  
  
  • 
    Minute: 0.90 mm
  
  
  • 
    Seconds: 0.25 mm
  
  
  
  

Shock Protection:

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  System: Incabloc, providing resistance against physical shocks and impacts.

Movement Interchangeability:

The ETA 2836-2 is compatible with several other movements, making it highly adaptable:

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  Bulova: 1413.10, 1413.11, 1413.30


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  Longines: 636.5, 639.2


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  Mido: 636


• 
  Omega: 2836


• 
  Rado: 636


• 
  Tissot: 3103, 3108