Seiko 5 Sports 5 Sports Street Style Hard Coating / Black - Blue / NATO

Reference SRPD81K1

About this watch

The Seiko SRPD81K1, a masterpiece of horology, is a watch that beautifully marries functionality with style. Its black and blue color scheme is both bold and versatile, making it suitable for various occasions. The sunburst finish on the dial catches the light beautifully, creating a dynamic look that changes with your movement. At the heart of this timepiece lies the automatic caliber 4R36 movement, known for its reliability and providing accurate timekeeping with a 41-hour power reserve. With a water resistance rating of 100 meters, this watch is perfect for swimmers or those who enjoy water sports. The SRPD81K1 features a round stainless steel case coated with PVD, providing durability and a sleek appearance. Its NATO strap adds to its casual yet sporty vibe, making it suitable for various wrist sizes. This watch is not just a tool; it’s a statement piece that complements any outfit, from a crisp white shirt and jeans to a tailored suit.
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Key Features

  • Automatic Seiko Caliber 4R36 movement
  • Water resistance up to 100 meters
  • Round stainless steel case with PVD coating
  • NATO strap for comfortable wearability
  • Durable Hardlex glass

Specifications

Brand
Seiko
Family
5 Sports
Model
5 Sports Street Style Hard Coating / Black - Blue / NATO
Reference
SRPD81K1
Movement
4r36
Movement Features
  • Hours, Minutes, Seconds
  • Date, Day
Case
Stainless Steel 42.5mm
Dial Color
Black
Crystal
Hardlex
Water Resistance
100

Current Listings

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Seiko - SRPK17 · $250
A limited edition Seiko SRPK17 55th Anniversary 5 Sports watch from 2023, with a 40mm case and 4R36 movement. The watch is in excellent condition, with some minor scratches on the bezel, hardlex crystal, and high polished case sides.

  • Condition: Excellent, with light scratches on lugs and case sides
  • Case Size: 40mm
  • Lug To Lug: 43.1mm
  • Height: 12.5mm
Posted at
Oct 17, 2025, 4:54 PM
Active
[WTS] Vintage Seiko 5 Sportsmatic Deluxe 7619-7010 - $225 Shipped!

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Vintage Seiko 5 Sportsmatic Deluxe featuring an automatic movement in a 38mm case, sunburst dial with day/date window, and comes on its original bracelet.

  • Condition: Great overall condition with light signs of wear
  • Case size: approximately 38mm
  • Bracelet size: fits wrists up to approximately 7.2 inches
Posted at
Oct 17, 2025, 8:34 AM
Active
[WTS] Seiko 5 Sports x Pepsi SSK047 -- Brand New in Box -- $675

Seiko 5 Sports x Pepsi SSK047 -- Brand New in Box -- $675

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This listing is for a brand new Seiko 5 Sports x Pepsi, which is a popular and stylish watch model.

  • Condition: Brand New in Box
  • Model name: Seiko 5 Sports x Pepsi
Posted at
Oct 16, 2025, 10:33 PM
Active
[WTS] Seiko X Pepsi 5 Sports SRPL99 LIMITED EDITION

Seiko X Pepsi 5 Sports SRPL99 LIMITED EDITION

Seiko - SRPL99 · $699
A limited edition Seiko watch, fully set and worn for only a week.

  • Condition: Mint condition
  • Limited Edition Number: 0944/7000
Posted at
Oct 14, 2025, 9:07 PM
Active
Seiko X Kosuke Kawamura 5 sports SBSA177

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Seiko - SBSA177 · $850
This limited edition Seiko Men's 5 Sports Kosuke Kawamura watch is a unique piece with only 3,000 produced. It features an automatic movement and comes with additional details such as a LumiBrite on hands, index(es) and bezel, and a three-fold clasp with push button release.

  • Condition: Mint condition
  • Movement Caliber: 4R36
  • Power Reserve: 41 hours
  • Water Resistance Bar: 10
Posted at
Mar 8, 2025, 6:34 PM
Active
1970s Seiko 5 Sports Speedtimer Chronograph Ref: 6138-0030 " Kakume"

1970s Seiko 5 Sports Speedtimer Chronograph Ref: 6138-0030 " Kakume"

Seiko - 6138-0030 · $950
This is a 1970s Seiko 5 Sports Speedtimer Chronograph with a 42mm stainless steel case, original blue tachymeter bezel, and excellent original blue chronograph dial. It comes with the Seiko calibre 6138 and a navy blue leather strap.

  • Condition: Very nice (42mm Stainless Steel case has some wear from use)
  • Case size: 42mm diameter
  • Bracelet type: Navy Blue leather strap
  • Serial number: 3D1,XXX
Posted at
Jan 23, 2025, 10:12 PM
Active