Seiko - Prospex SPB143

The Seiko SPB143 has been one of those releases that has captured the heart of many, it's easy to see why. This is a multi purpose watch being both rugged and classy. You may even find that it begs the question as to why you would wear anything else! Not only that, It's appeal will likely not fade because it looks great, feels good whatever you're wearing or doing.

What is immediately evident is this watch's condition, like new! Still even has some of the original plastic wrap on the back and links near the buckle.

FULL KIT!! Practically new and unworn having been bought in April of 2026.

Mechanical Movement

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

Case

• Stainless steel case
  
• Screwdown case back
• Box domed sapphire glass
  
• Screw-down crown
• 200 meters (660 feet).
  

Functions

• Date
• Sweeping seconds

Dial and Hands

• Black sunburst with applied indexes
  
• Sweeping seconds hand
  

• Case diameter: 40.5 mm
  
• Case thickness: 13.2 mm
  
• Lug to Lug: 47.6 mm
• Band lug width: 20 mm
• Weight: 180 grams