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.

Buy Now on Jomashop

This is an affiliate link

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

Seiko 5 Sports GMT Automatic - $300

Seiko - SSK023K1 · $300

Up for sale is a Seiko 5 Sports GMT SSK023K1 in excellent condition. The watch features a black textured dial with an orange/red GMT hand and a 4R34 automatic movement.

Condition: Very minimal wear, no major marks
Case diameter: 39.4mm
Thickness: 13.6mm
Lug-to-lug: 47.9mm

Posted at

Dec 15, 2025, 8:33 AM

Active

View listing on r/WatchExchange

Seiko SRPK29 5 Sports 38mm, $200 Shipped

Seiko - SRPK29 · $200

This Seiko SRPK29 5 Sports is a 38mm watch that was only worn a handful of times due to the owner not liking it for their wrist size.

Condition: Pre-owned (lightly used)
Case diameter: 38mm

Posted at

Dec 13, 2025, 12:01 PM

Active

View listing on r/WatchExchange

Vintage Seiko 5 Sportsmatic Deluxe 7619-7010 - $225 Shipped!

Seiko - 7619-7010 · $225

A vintage Seiko Sportsmatic Deluxe featuring an automatic movement in a 38mm case, sunburst dial, and day/date window.

Condition: great overall condition with light signs of wear
Case size: approximately 38mm
Bracelet length: fits wrists up to approximately 7.2 inches

Posted at

Dec 11, 2025, 8:50 AM

Active

View listing on r/WatchExchange

Seiko 5 Sports Automatic 23 Jewels Caliber 7S36- 04A0

Seiko - 7S36-04A0 · $125

A Seiko 5 Sports Automatic with a 23 jewel movement, featuring a rugged character and beautiful lume. The watch has some wear on the bezel but still works smoothly.

Condition: Pre-owned
Caliber: 7S36
Jewels: 23

Posted at

Dec 9, 2025, 11:02 PM

Active

View listing on r/WatchExchange

Seiko 5 Sports x Brian May "Red Special II" Limited Edition - SRPH80

Seiko - SRPH80

Posted at

Dec 9, 2025, 8:42 PM

Active

View listing on r/WatchExchange

Seiko 5 Sports SRPD61 Green Dial

Seiko - SRPD61 · $160

Up for sale is a classic Seiko 5 Sports reference SRPD61 with a beautiful green dial, featuring an automatic movement and 42.5mm case size.

Condition: Pre-owned, good condition
Size: 42.5mm diameter
Movement: Automatic

Posted at

Dec 9, 2025, 6:46 PM

Active

View listing on r/WatchExchange

Seiko 5 Sports x Rowing Blazers Limited Edition - Purple Dial - SRPJ65

Seiko - SRPJ65 · $375

Up for sale is the limited edition Seiko 5 Sports x Rowing Blazers with the striking purple dial, designed in collaboration with vintage watch expert Eric Wind and features a distinctive purple dial with 'Rowing Blazers' text.

Condition: Like New In Box (LNIB)
Case Size: 40mm diameter
Lug Width: 20mm
Movement: Seiko 4R36 Automatic (hacking and hand-winding)

Posted at

Dec 7, 2025, 6:24 PM

Active

View listing on r/WatchExchange

Seiko 5 Sports x Brian May "Red Special II" Limited Edition - SRPH80

Seiko - SRPH80 · $425

This limited edition Seiko 5 Sports watch, the second collaboration between Seiko and Queen guitarist Brian May, features a gold-tone case with a textured red dial and nylon guitar string strap.

Condition: Like-new (LNIB)
Case Size: 42.5mm diameter
Movement: Seiko 4R36 Automatic
Water Resistance: 100m depth rating

Posted at

Dec 7, 2025, 5:41 PM

Active

View listing on r/WatchExchange