Seiko Prospex Speedtimer Mechanical Chronograph SRQ055

Prospex Speedtimer Mechanical Chronograph. Seiko Prospex challenges every limit with timepieces created to exceed expectations, engineered with superior style and innovative technology for the sea, sky or land. Driven by a heritage of iconic design, Prospex continues to keep going forward with excellence in precision timekeeping, crafted for the modern world. Based on Seiko’s Speedtimer chronographs of the early 1970’s, this powerful creation offers superior timekeeping combined with sporty elegance and wearing comfort. Providing chronograph measurement of up to 12 hours of elapsed time in 1/8-second increments, the proprietary caliber 8R48 34-jewel automatic movement beats at a frequency of 28,800 vibrations per hour, with a power reserve of approximately 45 hours and manual winding capability. The movement incorporates a column wheel and vertical clutch mechanism allowing for smooth, stutter-free movement of the chronograph hand while providing long-term efficiency, reducing wear and tear, and maintaining the power reserve during chronograph operation. For reliable timing, the three-pointed hammer system ensures that all hands return to zero instantly and in perfect synchronization when the re-set pusher is pressed. The black dial, framed by a tachymeter scale for an authentic look, displays the word “Speedtimer,” honoring Seiko’s sports timing legacy, and features subdials with a contrasting finish, a date calendar, and LumiBrite hands and markers for superior visibility in low-light conditions. Crafted of stainless steel with super-hard coating for exceptional scratch resistance, this extraordinary watch is fitted with a sleek multi-row bracelet for a note of tailored luxury and includes a dual curved sapphire crystal, a secure screwdown caseback, and a tri-fold push button release clasp. 10 bar, 100M Water Resistant

Technical Data

  • Model: SRQ055
  • Collection: Prospex
  • Gender: Men
  • Dial Color: Black
  • Strap Material: Stainless steel bracelet with super-hard coating
  • Lug Width (Mm): 20
  • Movement: Automatic
  • Caliber: 8R48
  • Vibrations Per Hour: 28,800
  • Jewels: 34
  • Power Reserve: Approximately 45 hours
  • Case Material: Stainless steel case with super-hard coating
  • Case Diameter (Mm): 40.2
  • Case Thickness (Mm): 14.6
  • Case Length (Mm): 49.5
  • Crystal Type: Dual curved sapphire crystal with anti-reflective coating on the inner surface
  • Water Resistance: 10 bar, 100 meters (330 feet)

Features

  • Prospex Speedtimer Mechanical Chronograph
  • Black Tachymeter bezel
  • Column wheel and vertical clutch mechanism allowing for smooth, stutter-free movement of the chronograph hand
  • Date calendar
  • Design inspired by Seiko's early precision chronographs
  • Contrast in finish between the dial base and subdials improves visibility
  • Chronograph measurement of up to 12 hours of elapsed time in 1/8-second increments
  • Screwdown caseback
  • Classic black dial with Speedtimer logo
  • Automatic chronograph with manual winding capability
  • LumiBrite hands and markers
  • Tri-fold push button release clasp


Seiko Prospex Speedtimer Mechanical Chronograph SRQ055
Seiko Prospex Speedtimer Mechanical Chronograph SRQ055
Seiko Prospex Speedtimer Mechanical Chronograph SRQ055
Seiko Prospex Speedtimer Mechanical Chronograph SRQ055
Seiko Prospex Speedtimer Mechanical Chronograph SRQ055

Seiko Prospex Speedtimer Mechanical Chronograph SRQ055

Seiko Prospex Speedtimer Mechanical Chronograph SRQ055

Prospex Speedtimer Mechanical Chronograph. Seiko Prospex challenges every limit with timepieces created to exceed expectations, engineered with superior style and innovative technology for the sea, sky or land. Driven by a heritage of iconic design, Prospex continues to keep going forward with excellence in precision timekeeping, crafted for the modern world. Based on Seiko’s Speedtimer chronographs of the early 1970’s, this powerful creation offers superior timekeeping combined with sporty elegance and wearing comfort. Providing chronograph measurement of up to 12 hours of elapsed time in 1/8-second increments, the proprietary caliber 8R48 34-jewel automatic movement beats at a frequency of 28,800 vibrations per hour, with a power reserve of approximately 45 hours and manual winding capability. The movement incorporates a column wheel and vertical clutch mechanism allowing for smooth, stutter-free movement of the chronograph hand while providing long-term efficiency, reducing wear and tear, and maintaining the power reserve during chronograph operation. For reliable timing, the three-pointed hammer system ensures that all hands return to zero instantly and in perfect synchronization when the re-set pusher is pressed. The black dial, framed by a tachymeter scale for an authentic look, displays the word “Speedtimer,” honoring Seiko’s sports timing legacy, and features subdials with a contrasting finish, a date calendar, and LumiBrite hands and markers for superior visibility in low-light conditions. Crafted of stainless steel with super-hard coating for exceptional scratch resistance, this extraordinary watch is fitted with a sleek multi-row bracelet for a note of tailored luxury and includes a dual curved sapphire crystal, a secure screwdown caseback, and a tri-fold push button release clasp. 10 bar, 100M Water Resistant

Technical Data

  • Model: SRQ055
  • Collection: Prospex
  • Gender: Men
  • Dial Color: Black
  • Strap Material: Stainless steel bracelet with super-hard coating
  • Lug Width (Mm): 20
  • Movement: Automatic
  • Caliber: 8R48
  • Vibrations Per Hour: 28,800
  • Jewels: 34
  • Power Reserve: Approximately 45 hours
  • Case Material: Stainless steel case with super-hard coating
  • Case Diameter (Mm): 40.2
  • Case Thickness (Mm): 14.6
  • Case Length (Mm): 49.5
  • Crystal Type: Dual curved sapphire crystal with anti-reflective coating on the inner surface
  • Water Resistance: 10 bar, 100 meters (330 feet)

Features

  • Prospex Speedtimer Mechanical Chronograph
  • Black Tachymeter bezel
  • Column wheel and vertical clutch mechanism allowing for smooth, stutter-free movement of the chronograph hand
  • Date calendar
  • Design inspired by Seiko's early precision chronographs
  • Contrast in finish between the dial base and subdials improves visibility
  • Chronograph measurement of up to 12 hours of elapsed time in 1/8-second increments
  • Screwdown caseback
  • Classic black dial with Speedtimer logo
  • Automatic chronograph with manual winding capability
  • LumiBrite hands and markers
  • Tri-fold push button release clasp


Availability: Out of STOCK

$2,500.00 USD
$2,500.00 USD
Sale Sold out
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Specifications

Designer Seiko Dial color Black Gender Men Strap Stainless Steel Technology Automatic Water resistance 100 meters

Return Policy

Exchange only within 10 days of purchase

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Dejaun Jewelers
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Sarah Tamilarasan
Sarah Tamilarasan
in the last week

I can’t say enough wonderful things about my experience, especially thanks to Sterling at Dejaun Jewelers. I had been searching everywhere for the limited-stock Seiko “Pepsi” SSK047 — it was sold out almost instantly and nearly impossible to find. This watch was a gift for a close friend who never asks for much, and this was the one thing he truly wanted. I was determined to find it for him. When I reached out, Sterling immediately reassured me that they had a few in stock. His communication was warm, clear, and incredibly patient as he confirmed everything I needed to know. He understood how meaningful this gift was, and within just a few hours of placing the order, he surprised me by sending the UPS tracking number. That level of responsiveness and care is rare these days. Sterling turned what could’ve been a stressful search into a smooth, heartwarming experience. Thanks to him, I was able to secure a special, hard-to-find watch for someone who truly deserves it. I’m deeply grateful and highly recommend this team. If you’re looking for honesty, commitment, and exceptional service, Dejaun Jewelers is the place.

Benito Pedraza
Benito Pedraza
in the last week

Attentive staff and very easy transaction!

Николай Савченко
Николай Савченко
in the last week

Xiuwei Li
Xiuwei Li
in the last week

I had an amazing experience purchasing our rings here, and I want to give a special shout-out to Sterling. From the very beginning, he made the entire process smooth, stress-free, and enjoyable. He was incredibly patient, knowledgeable, and responsive to every question I had — even sending updates along the way so I always knew what was happening with the order. When the ring arrived, he shipped it immediately and followed up with tracking information right away. It’s rare to find someone who genuinely cares about customer satisfaction the way Sterling does. His professionalism and kindness made us feel taken care of throughout the whole process. If you’re looking for great quality jewelry and outstanding service, especially with someone who will go above and beyond for you, ask for Sterling. Highly recommend

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