Seiko - Prospex SPB191

Mechanical Movement

• 6R35
  
• Mechanical movement
  
• +25 / -15 seconds per day
  
• Seconds stop function
• 24 jewels
• 70 hour power reserve
  

Case

• Titanium case
  
• Screwdown case back
• Dual curved Sapphire glass
  
• Screwdown crown
• 200 meters (600 feet).
  

Functions

• Date
• Sweeping seconds

Dial and Hands

• White dial, with LumiBrite filled steel indexes
  
• Steel hands with LumiBrite
  

• Case diameter: 43.5 mm
  
• Case thickness: 13.3 mm
  
• Lug to Lug: 51 mm
• Band lug width: 22 mm
• Weight: 99 grams