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Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch
Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch
Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch
Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch
Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch
Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch

Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch

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From the

Prospex

Collection

Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch

The SPB505 delivers the Alpinist ethos in its most versatile configuration.

Featuring a classic black dial that ensures maximum legibility, this 39.5mm field watch maintains the collection's signature elements: cathedral-style hands, Arabic numerals with wedge-shaped indices, and the rotating inner compass bezel that has defined the series since its mountaineering origins in 1959. LumiBrite application on hands and markers provides reliable visibility in low-light conditions, while the Alpinist logo positioned below twelve o'clock honors the collection's heritage.
Caliber 6R55 automatic movement drives this timepiece, offering 72 hours of power reserve with manual winding capability and date complication. The 24-jewel movement beats at 21,600 vibrations per hour, showcased through the exhibition caseback marked with the distinctive Alpinist mountain symbol. Seiko's super-hard coating protects the stainless steel case from daily wear, while 200-meter water resistance ensures capability beyond traditional field watch duties. The screwdown crown provides reliable sealing, and the stainless steel bracelet features tri-fold push button release clasp. Measuring 12.7mm thick with 46.4mm lug-to-lug dimensions, this Alpinist balances substantial presence with everyday wearability.

  • Prospex Alpinist
  • Inspired by Seiko’s first sports watch, introduced in 1959 for daring mountaineers
  • Classic black dial
  • Signature Arabic numerals and wedge shaped indices
  • Stylized LumiBrite hands and markers
  • Alpinist logo displayed on the dial
  • Rotating inner compass bezel
  • Automatic with manual winding capability
  • Magnified date calendar
  • Screwdown crown
  • Transparent screwdown caseback with iconic Alpinist mountain symbol
  • Tri-fold push button release clasp

Movement

  • Type: Automatic
  • Caliber: 6R55
  • Vibrations: 21,600 vibrations per hour
  • Jewels: 24 jewels
  • Power Reserve: Approximately 72 hours

Case Dimensions

  • Material: Stainless steel case with super-hard coating
  • Diameter: 39.5 mm
  • Thickness: 12.7 mm
  • Length: 46.4 mm

Other

  • Crystal Material: Sapphire crystal with anti-reflective coating on the inner surface
  • Water Resistance: 20 bar, 200 meters (660 feet)
  • Dial Color: Black
  • Strap: Stainless steel bracelet with super-hard coating
  • Lug Width: 20 mm
Seiko SPB505 Prospex Alpinist Black Dial Automatic Watch

The SPB505 delivers the Alpinist ethos in its most versatile configuration.

Featuring a classic black dial that ensures maximum legibility, this 39.5mm field watch maintains the collection's signature elements: cathedral-style hands, Arabic numerals with wedge-shaped indices, and the rotating inner compass bezel that has defined the series since its mountaineering origins in 1959. LumiBrite application on hands and markers provides reliable visibility in low-light conditions, while the Alpinist logo positioned below twelve o'clock honors the collection's heritage.
Caliber 6R55 automatic movement drives this timepiece, offering 72 hours of power reserve with manual winding capability and date complication. The 24-jewel movement beats at 21,600 vibrations per hour, showcased through the exhibition caseback marked with the distinctive Alpinist mountain symbol. Seiko's super-hard coating protects the stainless steel case from daily wear, while 200-meter water resistance ensures capability beyond traditional field watch duties. The screwdown crown provides reliable sealing, and the stainless steel bracelet features tri-fold push button release clasp. Measuring 12.7mm thick with 46.4mm lug-to-lug dimensions, this Alpinist balances substantial presence with everyday wearability.

  • Prospex Alpinist
  • Inspired by Seiko’s first sports watch, introduced in 1959 for daring mountaineers
  • Classic black dial
  • Signature Arabic numerals and wedge shaped indices
  • Stylized LumiBrite hands and markers
  • Alpinist logo displayed on the dial
  • Rotating inner compass bezel
  • Automatic with manual winding capability
  • Magnified date calendar
  • Screwdown crown
  • Transparent screwdown caseback with iconic Alpinist mountain symbol
  • Tri-fold push button release clasp

Movement

  • Type: Automatic
  • Caliber: 6R55
  • Vibrations: 21,600 vibrations per hour
  • Jewels: 24 jewels
  • Power Reserve: Approximately 72 hours

Case Dimensions

  • Material: Stainless steel case with super-hard coating
  • Diameter: 39.5 mm
  • Thickness: 12.7 mm
  • Length: 46.4 mm

Other

  • Crystal Material: Sapphire crystal with anti-reflective coating on the inner surface
  • Water Resistance: 20 bar, 200 meters (660 feet)
  • Dial Color: Black
  • Strap: Stainless steel bracelet with super-hard coating
  • Lug Width: 20 mm

Why Choose Skeie's

Authorized Dealer
Official Seiko authorized dealer with full manufacturer warranty and authenticity guarantee
Expert Service
Decades of horological expertise with certified watchmakers and personalized customer care
Fast & Secure Shipping
Insured delivery with tracking, carefully packaged to arrive in perfect condition

Every new Seiko purchased at Skeie's is backed by their 3-year warranty

3
YEAR
WARRANTY
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Frequently Asked Questions

We take all jewelry and watches in for review and estimation before beginning any work; the review is complimentary and we will always approve estimates with you before we begin any work.

We cannot give price estimates over the phone or online, as every piece can var

We have a team of expert goldsmiths and jewelers on site, and can work on a large range of repair needs.

Common repairs include ring sizing, polishing, rhodium plating, adjusting chain length, replacing clasps, re-stringing services, and more.

There is no appointment necessary to drop off your items for review and estimates.

Since we're located in Eugene, Oregon, we do NOT charge sales tax. The prices you see are the prices you pay!

We offer free shipping on all orders over $500. Our standard shipping is 2-7 days; all items are fully insured and require a signature upon delivery.

Articles are accepted for credit or exchange in the U.S. if returned in salable condition within 30 days, accompanied by a sales receipt. Some exclusions may apply.