Seiko 5 - SRPK31

Mechanical Movement

• 4R36
  
• Automatic winding
  
• 24 jewels
• 41 hour power reserve
  

Case

• Stainless steel case
  
• Screw down exhibition case back
  
• Hardlex glass
  
• Screw-down crown
• 100 meters (330 feet)

Functions

• Stop second hand function
  
• Date / Day
  
• Sweeping seconds hand

Dial and Hands

• Cream; Steel and white indexes with LumiBrite
  
• Steel Hour and minute with LumiBrite
  

• Case diameter: 38 mm
  
• Case thickness: 12.1 mm
  
• Lug to Lug: 44.2 mm
• Band lug width: 20 mm
• Weight: 140 grams