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Prospex Automatic Diver. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. With its rugged and powerful design, this distinctive timepiece has been inspired by Seiko's acclaimed 2007 automatic diver's watch, an immediate favorite of collectors.

This powerful reissue, updated in both technology and materials, is crafted of stainless steel, with a sapphire crystal and tri-fold push button release clasp with secure lock and extender. The deep green dial, framed by a green one-way rotating elapsed timing bezel, includes a date calendar and LumiBrite hands and markers. Upgraded from the original, 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. With secure screwdown crown and caseback, this high-intensity timepiece follows ISO standards for scuba diving. 200m Water Resistant.


  • Product Number: 450018192332
  • Model Number: SPB103
  • Collection: Prospex
  • Movement: Automatic
  • Case Material: Stainless Steel
  • Case Thickness: 12.9 mm
  • Case Size: 45 mm
  • Watch Crystal: Sapphire with anti-reflective coating on inner surface
  • Dial Color: Green
  • Caseback: Plain, stainless steel
  • Bracelet: Stainless Steel
  • Clasp: Three-fold clasp with push button release
  • Water Resistance: 200 metres / 20 ATM
  • Functions: Hours, minutes, seconds, date, stop seconds hand function, lumiBrite on hands, index(es) and bezel
  • Power Reserve: 70 hours
  • Complication: Date
  • Bezel: Unidirectional
  • Warranty:

    3-year warranty

  • Case Material: Stainless Steel
  • Case Size: 45 mm
  • Case Thickness: 12.9 mm
  • Caseback: Plain, stainless steel
  • Dial Color: Green
  • Bezel: Unidirectional
  • Watch Crystal: Sapphire with anti-reflective coating on inner surface
  • Movement: Automatic
  • Complication: Date
  • Power Reserve: 70 hours
  • Functions: Hours, minutes, seconds, date, stop seconds hand function, lumiBrite on hands, index(es) and bezel
  • Clasp: Three-fold clasp with push button release
  • Bracelet: Stainless Steel
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Seiko

Seiko Prospex Sea Diver Sumo Automatic 45 mm Stainless Steel

Prospex Sea Diver Sumo Automatic 45 mm Stainless Steel
Estimated Price:
$ 1,050
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*This item is on order. This ring will be crafted just for you.
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Please note the estimated time for our engraving services is 7 to 10 business days. Engraved items are final sale.

Prospex Automatic Diver. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. With its rugged and powerful design, this distinctive timepiece has been inspired by Seiko's acclaimed 2007 automatic diver's watch, an immediate favorite of collectors.

This powerful reissue, updated in both technology and materials, is crafted of stainless steel, with a sapphire crystal and tri-fold push button release clasp with secure lock and extender. The deep green dial, framed by a green one-way rotating elapsed timing bezel, includes a date calendar and LumiBrite hands and markers. Upgraded from the original, 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. With secure screwdown crown and caseback, this high-intensity timepiece follows ISO standards for scuba diving. 200m Water Resistant.


  • Product Number: 450018192332
  • Model Number: SPB103
  • Collection: Prospex
  • Movement: Automatic
  • Case Material: Stainless Steel
  • Case Thickness: 12.9 mm
  • Case Size: 45 mm
  • Watch Crystal: Sapphire with anti-reflective coating on inner surface
  • Dial Color: Green
  • Caseback: Plain, stainless steel
  • Bracelet: Stainless Steel
  • Clasp: Three-fold clasp with push button release
  • Water Resistance: 200 metres / 20 ATM
  • Functions: Hours, minutes, seconds, date, stop seconds hand function, lumiBrite on hands, index(es) and bezel
  • Power Reserve: 70 hours
  • Complication: Date
  • Bezel: Unidirectional
  • Warranty:

    3-year warranty

  • Case Material: Stainless Steel
  • Case Size: 45 mm
  • Case Thickness: 12.9 mm
  • Caseback: Plain, stainless steel
  • Dial Color: Green
  • Bezel: Unidirectional
  • Watch Crystal: Sapphire with anti-reflective coating on inner surface
  • Movement: Automatic
  • Complication: Date
  • Power Reserve: 70 hours
  • Functions: Hours, minutes, seconds, date, stop seconds hand function, lumiBrite on hands, index(es) and bezel
  • Clasp: Three-fold clasp with push button release
  • Bracelet: Stainless Steel
View More Details
View Fewer Details

Prospex Automatic Diver. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and style. With its rugged and powerful design, this distinctive timepiece has been inspired by Seiko's acclaimed 2007 automatic diver's watch, an immediate favorite of collectors.

This powerful reissue, updated in both technology and materials, is crafted of stainless steel, with a sapphire crystal and tri-fold push button release clasp with secure lock and extender. The deep green dial, framed by a green one-way rotating elapsed timing bezel, includes a date calendar and LumiBrite hands and markers. Upgraded from the original, 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. With secure screwdown crown and caseback, this high-intensity timepiece follows ISO standards for scuba diving. 200m Water Resistant.


  • Product Number: 450018192332
  • Model Number: SPB103
  • Collection: Prospex
  • Movement: Automatic
  • Case Material: Stainless Steel
  • Case Thickness: 12.9 mm
  • Case Size: 45 mm
  • Watch Crystal: Sapphire with anti-reflective coating on inner surface
  • Dial Color: Green
  • Caseback: Plain, stainless steel
  • Bracelet: Stainless Steel
  • Clasp: Three-fold clasp with push button release
  • Water Resistance: 200 metres / 20 ATM
  • Functions: Hours, minutes, seconds, date, stop seconds hand function, lumiBrite on hands, index(es) and bezel
  • Power Reserve: 70 hours
  • Complication: Date
  • Bezel: Unidirectional
  • Warranty:

    3-year warranty

  • Case Material: Stainless Steel
  • Case Size: 45 mm
  • Case Thickness: 12.9 mm
  • Caseback: Plain, stainless steel
  • Dial Color: Green
  • Bezel: Unidirectional
  • Watch Crystal: Sapphire with anti-reflective coating on inner surface
  • Movement: Automatic
  • Complication: Date
  • Power Reserve: 70 hours
  • Functions: Hours, minutes, seconds, date, stop seconds hand function, lumiBrite on hands, index(es) and bezel
  • Clasp: Three-fold clasp with push button release
  • Bracelet: Stainless Steel
View More Details
View Fewer Details

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