[product_description]Prospex Alpinist. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with re-creations and re-interpretations of landmark achievements. A modern reimagining of Seiko’s first sport watch, introduced in 1959, this distinctive timepiece follows a highly successful Spring 2019 limited edition and more recent additions to the line. With a smaller case to fit contemporary tastes while evoking a vintage feel, this versatile watch features a gradated green dial with date calendar and LumiBrite hands and markers, as well as a curved anti-reflective sapphire crystal. The 24-jewel automatic movement beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 70 hours, and can be wound manually or automatically. Crafted of stainless steel, with screwdown crown, see-through caseback, and secure tri-fold push button release clasp. 20 bar, 200M Water Resistant[/product_description][unique_description_1]

• Model: SPB155
• Collection: Prospex
• Gender: Men's
• Dial Color: Green
• Strap Material: Stainless Steel
• Strap Detail: Stainless steel bracelet
• Lug Width (mm): 20
• Movement: Automatic
• Caliber: 6R35
• Movement Detail:
  Caliber 6R35
  21,600 vibrations per hour
  24 jewels
  
• Power reserve: approximately 70 hours
• Case Material: Stainless steel case
• Case Diameter (mm): 38
• Case Thickness (mm): 12.9
• Case Length (mm): 46
• Crystal Type: Curved sapphire crystal with anti-reflective coating on the inner surface
• Water Resistance: 20 bar, 200 meters (660 feet)

[/unique_description_1][unique_description_2]

• Automatic with manual winding capability
• Gradated green dial
• Date calendar
• Screwdown crown
• See-through caseback
  
• LumiBrite hands and markers
  
• Tri-fold clasp with push button release
  

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