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

Reference SRPD81K1

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

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

[WTS] Seiko 5 Sports SRPD71 - Purchased 7/2025 - $170 Shipped FINAL PRICE DROP

Seiko - SRPD71 · $170

This Seiko 5 Sports SRPD71 is an almost brand new automatic watch with a Caliber 4R36 movement, featuring an exhibition caseback and hardlex mineral crystal. It has a water resistance of 100m and comes with original packaging, warranty card, and hang tag.

Condition: almost brand new, essentially unworn
Movement: Caliber 4R36 Automatic, Hand-Winding, Hacking
Power reserve: ~41 Hours
Case diameter: 42.5mm

Posted at

Feb 4, 2026, 4:09 PM

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Seiko 5 Sports Speed timer Automatic Watch. $420 Shipped.

Seiko - 6139-8050 · $420

This Seiko 5 Sports Speed timer Automatic Watch is a Japan-only model with a blue sunburst dial and features an automatic movement, chronograph function, date window, and stainless steel case.

Condition: Good Working Condition
Movement: Seiko Caliber 6139
Jewels: 21 Jewels
Manufacture: Japan

Posted at

Feb 4, 2026, 11:36 AM

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Seiko 5 Sports SRPJ87 "36mm Mid-Field" or "Champagne Flieger" MADE IN JAPAN $185

Seiko - SRPJ87 · $185

This Seiko 5 Sports SRPJ87 features a stainless steel case with a champagne dial and is known as the '36mm Mid-Field' or 'Champagne Flieger'. It has a curved hardlex crystal, 100m water resistance, and a see-through exhibition screw caseback. The watch is powered by the reliable Seiko Caliber 4R36.

Condition: Running good
Case Diameter: 36.4mm
Lug Width: 18mm
Water Resistance: 100m (10 Bar)

Posted at

Feb 4, 2026, 9:52 AM

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Seiko 5 Sports One Piece Limited Edition Luffy European Limited Edition

Seiko - 311/1000 · $1,100

This Seiko One Piece Limited Edition watch features a 46mm diameter case and is one of only 1000 produced.

Condition: mint condition
Movement: Automatic
Case material: Steel
Bracelet material: Steel

Posted at

Feb 3, 2026, 12:11 PM

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Seiko 5 Sports One Piece Limited Edition Luffy Seiko ELT

Seiko - 4830 · $2,300

A limited edition Seiko watch, part of the One Piece series, featuring a 39mm diameter case and quartz movement.

Case Diameter: 39mm
Movement: Quartz

Posted at

Feb 3, 2026, 5:43 AM

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1966 Seiko 5 Sportsmatic Deluxe

Seiko - 5 Sportsmatic Deluxe · $225

Up for sale is my vintage Seiko 5 Sportsmatic Deluxe on an Uncle Seiko beads of rice bracelet with a 38mm case size.

Condition: Very good condition for its age
Case Size: 38mm diameter
Wrist Size: 6.75 inches

Posted at

Feb 2, 2026, 10:16 AM

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Seiko 5 Sports 7019 6040 on (original?) bracelet XGA 151 with signed clasp and one spare link - free ship to USA

A great-looking vintage Seiko 5 Sports Automatic with a numeric index inner bezel and quickset functions for day and date.

Posted at

Feb 1, 2026, 2:18 PM

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Seiko 5 Sports 6119 8140 'Water 70 Proof' on (original?) bracelet XGA 062 with signed clasp, extender, and two spare links - free ship to USA

Seiko - 6119 8140 · $335

This vintage Seiko 5 Sports Automatic features a 'Water Proof' dial and caseback. The watch runs well and has a good crystal and bracelet.

Condition: good
Bracelet size: 19mm lug width
Case condition: light swirls on top of case; small nicks/dings around/on case and bezel
Dial code: 6119 8150R

Posted at

Feb 1, 2026, 2:14 PM

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Seiko 5 Sports 7S36-01E0 | Automatic | 200m | Made in Japan

Seiko - 7S36-01E0 · $250

This Seiko 5 Sports is an automatic watch made in Japan, featuring a stainless steel case and a black dial. It has a water resistance of 200m.

Condition: Running well with honest wear consistent with use
Movement Type: Seiko 7S36 automatic (23 jewels, day/date)
Case Material: Stainless steel
Water Resistance Depth: 200m

Posted at

Jan 31, 2026, 1:51 AM

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