PROSPEX ALPINIST SPB121

From the Prospex Collection. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. A modern re-imagining of Seiko's first sport watch, introduced in 1959, this distinctive timepiece is an upgrade of a highly successful Spring 2019 limited edition. Equipped with a rotating inner compass bezel for outdoor adventure, this unique design features a sunray-finish green dial with gold accents, LumiBrite hands and markers, magnified date window, and sapphire crystal with anti-reflective coating on the inner surface. 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 brown leather strap, secure tri-fold push button release clasp, screwdown crown and see-through caseback. 20 bar, 200M Water Resistant.

Technical Data

  • Caliber 6R35
  • 21,600 vibrations per hour
  • 24 jewels
  • Power reserve: approximately 70 hours
  • Case Diameter: 39.5mm
  • Case Thickness: 13.2mm
  • Case Length: 46.4mm

    • Features

  • Automatic with manual winding capability
  • Green dial with sunray finish and gold accents
  • Rotating inner compass bezel
  • Magnified date window
  • Screwdown crown
  • See-through caseback
  • LumiBrite hands and markers
  • Tri-fold clasp with push button release
    • PROSPEX ALPINIST SPB121
    PROSPEX ALPINIST SPB121
    PROSPEX ALPINIST SPB121
    PROSPEX ALPINIST SPB121
    PROSPEX ALPINIST SPB121

    PROSPEX ALPINIST SPB121

    PROSPEX ALPINIST SPB121

    From the Prospex Collection. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. A modern re-imagining of Seiko's first sport watch, introduced in 1959, this distinctive timepiece is an upgrade of a highly successful Spring 2019 limited edition. Equipped with a rotating inner compass bezel for outdoor adventure, this unique design features a sunray-finish green dial with gold accents, LumiBrite hands and markers, magnified date window, and sapphire crystal with anti-reflective coating on the inner surface. 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 brown leather strap, secure tri-fold push button release clasp, screwdown crown and see-through caseback. 20 bar, 200M Water Resistant.

    Technical Data

  • Caliber 6R35
  • 21,600 vibrations per hour
  • 24 jewels
  • Power reserve: approximately 70 hours
  • Case Diameter: 39.5mm
  • Case Thickness: 13.2mm
  • Case Length: 46.4mm

    • Features

  • Automatic with manual winding capability
  • Green dial with sunray finish and gold accents
  • Rotating inner compass bezel
  • Magnified date window
  • Screwdown crown
  • See-through caseback
  • LumiBrite hands and markers
  • Tri-fold clasp with push button release

    • Availability: IN STOCK

    $725.00 USD
    $725.00 USD
    Sale Sold out
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    Specifications

    Caliber 6R35 Designer Seiko Dial color Green Strap Brown leather strap Technology Automatic Water resistance 20 bar 200 meters (660 feet)

    Return Policy

    Exchange only within 10 days of purchase

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    What Our Clients Say About Us

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    Dejaun Jewelers
    4.9 (194)
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    David K.
    David K.
    in the last week

    Great service! Highly recommended!

    Robyn Bensinger
    Robyn Bensinger
    in the last week

    I was in search of a family owned jewelry store on a Sunday & discovered Dejuan Jewelers in Woodland Hills. I noticed a missing diamond in my Mother's ring which I have been wearing since 2000. The ring contained 5 diamonds, one for each of my siblings so it was absolutely precious to me. Both Michael and Sterling listened to my story, assuring me it would be expertly repaired with a matching diamond, beautifully cleaned and ready for pick up end of the week. It was ready 2 days early and was astonished at its polished, gorgeous condition! I was thrilled knowing I made the right decision to trust these two gentlemen Jewelers, both professional, extremely knowledgeable and kind. It was a pleasure working with them, and learning about their passion for this exquisite craft! Robyn Bensinger 10/7/2025

    Genie Kontos
    Genie Kontos
    a week ago

    A very reputable family owned business that Goes out of their way to please their Customers

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