Product Overview

• 
  Brand: ETA (ESA 251.474).


• 
  Type: Swiss Quartz Chronograph Movement.


• 
  Interchangeable With: ETA 251.471.

Technical Specifications

• 
  Ligne Size: 10 1/2 Ligne (23.90mm) diameter.


• 
  Thickness: 5.00mm.


• 
  Movement Height: H1 (confirm height by measuring the hour wheel of the existing movement).


• 
  Jewels: 22 jewels, ensuring efficient gear movement and reduced friction.


• 
  Plate Color: Gold.


• 
  Battery: 394 cell.

Display & Functionality

• 
  Center Hands:
  
  
  
  • 
    Hour: 1.50mm (150).
  
  
  • 
    Minute: 0.90mm (90).
  
  
  • 
    Sweep Second: 0.30mm (30).
  
  
  
  


• 
  Indicators:
  
  
  
  • 
    Diameter: 0.20mm (20).
  
  
  • 
    Subdial Positions:
    
    
    
    • 
      1/10 Second Counter: 2 o’clock.
    
    
    • 
      Small Seconds: 6 o’clock.
    
    
    • 
      30-Minute Counter: 10 o’clock.
    
    
    
    
  
  
  
  

Calendar

• 
  Position: 3 o’clock.


• 
  Style: Suspended imprinting, meaning the date numbers are angled for easier readability.