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HOT ! Seiko SPB121 Prospex Alpinist Automatic Watch

*bolumobile.com limited edition model
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$725

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Detailed information on Seiko SPB121 Prospex Alpinist Automatic Watch

Discover the Seiko Alpinist SPB121, a remarkable automatic wristwatch from the esteemed Seiko Prospex Collection. This timepiece features a robust stainless steel case and a striking green dial with a sunray finish, complemented by gold accents. The watch is powered by the Japanese-made Caliber 6R35 movement, offering both manual and automatic winding capabilities.


Key features of the Seiko SPB121 include:



  • Case diameter: 39.5mm

  • Water-resistant up to 200 meters (20 bar)

  • Power reserve of approximately 70 hours

  • 21 jewels for enhanced precision

  • Rotating inner compass bezel

  • Magnified date window for easy readability

  • LumiBrite hands and markers for visibility in low light

  • Sapphire crystal with anti-reflective coating

  • Screwdown crown and see-through caseback

  • Brown leather strap with a tri-fold push button release clasp


This modern re-imagining of Seiko’s first sport watch, originally introduced in 1959, combines classic design with contemporary functionality. The SPB121 is perfect for adventurers and watch enthusiasts alike, making it a versatile addition to any collection.

  • Seiko SPB121 Prospex Alpinist Automatic Watch
  • Seiko SPB121 Prospex Alpinist Automatic Watch

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