Prospex Speedtimer Solar Chronograph SFJ005

Regular price $925.00

Prospex Speedtimer 40th Anniversary Limited Edition. Designed for those who treat life as the ultimate adventure, Seiko Prospex keeps moving forward, meeting every challenge with technological excellence and winning design. This extraordinary Limited Edition, available only in a controlled-production run of 4,000, with the serial number engraved on each caseback, celebrates the 40th anniversary of the first analog quartz chronograph...

  • Sku: SFJ005
  • Available: instock
  • Vendor: Seiko
Prospex Speedtimer Solar Chronograph SFJ005
Prospex Speedtimer Solar Chronograph SFJ005
Regular price $925.00

Prospex Speedtimer 40th Anniversary Limited Edition. Designed for those who treat life as the ultimate adventure, Seiko Prospex keeps moving forward, meeting every challenge with technological excellence and winning design. This extraordinary Limited Edition, available only in a controlled-production run of 4,000, with the serial number engraved on each caseback, celebrates the 40th anniversary of the first analog quartz chronograph equipped with a 1/100-second stopwatch. Featuring the new solar chronograph 8A50 movement, this exceptional watch includes a highly legible, uniquely designed dial with a warm charcoal gray base and four inset black subdials, separating the time dial from the chronograph indicators, and LumiBrite hands and markers. The chronograph function measures up to 60 minutes of elapsed time in 1/100-second increments and provides a split time function, while the solar cell, powered by any light source, with no battery change required, offers a 6-month power reserve when fully charged. To allow easy utilization of the stopwatch feature, this precision watch features concave tops on the hammer-shaped pushers. With a curved anti-reflective sapphire crystal, this rugged stainless steel timepiece includes stylish black center links, a screwdown caseback and tri-fold push button release clasp. 10 bar, 100M Water Resistant

COLLECTION: Prospex
GENDER: Men's
MOVEMENT: Solar Chronograph
BAND: Stainless Steel
DIAL COLOR: Charcoal
CALIBER: 8A50
BOOKLET: NSY8A501
PRODUCT NAME: Prospex Speedtimer Solar Chronograph
CALIBER: Caliber 8A50
VIBRATION: Powered by light energy - no battery change required
POWER RESERVE: 6-month power reserve once fully charged
CASE DIAMETER (MM): 42.00
CASE THICKNESS (MM): 12.91
CASE LENGTH (MM): 48.27
WEB CASE MATERIAL: Stainless steel case
WEB CRYSTAL: Curved sapphire crystal with anti-reflective coating on the inner surface
WEB STRAP: Stainless steel bracelet with black center links
WEB LUG: 20
WEB WATER RESISTANCE: 10 bar, 100 meters (330 feet)
CASE CROSS REFERENCE: Speedtimer3

  • Prospex Speedtimer 1/100 Second Solar Chronograph Limited Edition
  • Limited Edition of 4,000, celebrating the 40th anniversary of Seiko‚Äôs - and the world‚Äôs - first analog quartz chronograph equipped with a 1/100-second stopwatch
  • Production serial number engraved on caseback
  • Features the new solar chronograph 8A50 movement, with precision stopwatch timing to 1/100 second, measurement up to 60 minutes of elapsed time, and a split time function
  • Warm charcoal gray dial with four inset black subdials, including a separate time dial
  • LumiBrite hands and markers
  • Concave top hammer-shaped pushers for easy stopwatch timing
  • Screwdown caseback
  • Tri-fold push button release clasp

Seiko's journey, which began in 1881, is a remarkable story of vision, innovation, and dedication. When Kintaro Hattori, a 21-year-old entrepreneur, opened his small shop in Tokyo’s bustling Ginza district, he laid the foundation for what would become one of the world’s most respected watchmaking companies. Initially, Hattori focused on selling and repairing watches and clocks, but his ambition was far greater. He envisioned creating timepieces that would not only be precise but also reflect the spirit of Japanese craftsmanship.
In 1892, just over a decade after opening his shop, Hattori took a significant step forward by founding Seikosha, a factory dedicated to producing wall clocks. The name "Seikosha" means "House of Exquisite Workmanship," and it represented Hattori’s commitment to quality. By 1913, Seikosha had produced Japan’s very first wristwatch, the Laurel, marking a historic milestone for both the company and the nation’s watchmaking industry.

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