Seiko 5 Sports 5 Sports Sports Style Stainless Steel / Blue / NATO

Reference SRPD51K2

Seiko 5 Sports Sports Style Stainless Steel / Blue / NATO

About this watch

The Seiko SRPD51K2, also known as the SRPD51, is a stunning blend of classic design and modern technology. Launched in 2019, this watch is a part of Seiko’s renowned 5 Sports collection, which is celebrated for its robustness and versatility. With a striking blue sunburst dial and a reliable automatic movement, the SRPD51K2 is not just a watch; it's a statement piece. The stainless steel case not only enhances durability but also gives it a sleek, polished look. Plus, the Hardlex glass is designed to withstand scratches, making it an excellent choice for daily wear. At the heart of the Seiko SRPD51K2 is the caliber 4R36 automatic movement. This reliable movement boasts a 41-hour power reserve, allowing you to take it off for a weekend without worrying about it stopping. It features a frequency of 21,600 vibrations per hour, ensuring excellent accuracy. The watch displays hours, minutes, seconds, and even the date and day, making it incredibly functional for everyday use. With a water resistance of up to 100 meters, the SRPD51K2 is a solid choice for swimmers and snorkelers. It's built to withstand the elements. The rotating bezel adds an extra layer of utility, especially for diving enthusiasts who need to track elapsed time underwater.

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Key Features

Seiko caliber 4R36 automatic movement
Stainless steel case with Hardlex glass
100m water resistance

Specifications

Brand

Seiko

Family

5 Sports

Model

5 Sports Sports Style Stainless Steel / Blue / NATO

Reference

SRPD51K2

Movement

4r36

Movement Features

Hours, Minutes, Seconds
Date, Day

Case

Stainless Steel 42.5mm

Dial Color

Blue

Crystal

Hardlex

Water Resistance

100

Current Listings

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The Seiko SSK003 is an everyday GMT watch with a blue/black 'Batman' bezel, suitable for various occasions.

Condition: Very good condition
Movement: Seiko 4R34 automatic GMT movement
Case size: 42.5mm
Crystal type: Hardlex crystal

Posted at

Mar 17, 2026, 1:32 AM

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Seiko SSK001 GMT - SKX 5 Sports Grey/Black

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Selling my Seiko SSK001 GMT, a black/grey watch with a bi-directional bezel and date display.

Condition: 7.5/10
Movement: Seiko Caliber 4R34 automatic GMT
Power reserve: 41 hours
Case diameter: 42.5 mm

Posted at

Mar 17, 2026, 12:22 AM

Active

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Seiko 5 Sports Field GMT "Deception" SSKO25

Seiko - SSKO25 · $299

This is a Seiko 5 Sports Field GMT watch, known as the 'Deception'. It features a unique design and is in excellent condition.

Condition: Mint, barely worn
Box: yes
Papers: yes
Warranty Card Valid Until: December 2028

Posted at

Mar 16, 2026, 5:43 PM

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Seiko SRPK33 Seiko 5 Sports

Seiko - SRPK33 · $190

This Seiko SRPK33 is a 37mm watch in good condition, showing some signs of wear.

Condition: Pre-owned with minor wear
Case Size: 37mm
Bezel Condition: Scratch at 9min
Bracelet Condition: Rebrushed

Posted at

Mar 15, 2026, 10:25 PM

Active

View listing on r/WatchExchange

Seiko 5 Sports SRPE55 “DressKX” – Sapphire Crystal Upgrade

Seiko - 5 Sports SRPE55 · $250

A Seiko 5 Sports SRPE55, also known as the 'DressKX', comes with a double-domed sapphire crystal and is powered by an automatic Seiko 4R36 movement. It has been worn daily for three years.

Condition: daily-wear, honest signs of use
Case Size: 40mm diameter
Lug Width: 20mm
Movement: Seiko 4R36 automatic (hacking & hand-winding)

Posted at

Mar 10, 2026, 8:11 PM

Active

View listing on r/WatchExchange