2025 Seiko 5 Sports Heritage 'Gene Kranz' Limited 38.5mm SRPL93

Here we have a 2025 Seiko 5 Sports Heritage 'Gene Kranz' Limited 38.5mm (Ref. SRPL93 / SRPL93K1), a beautifully executed and historically significant Japanese tool watch that pays tribute to one of NASA’s most iconic figures. Released to celebrate the rich legacy of 1960s space exploration, this striking reference draws direct inspiration from the vintage Seiko 6106-8100 "5 Actus" worn by legendary NASA Flight Director Gene Kranz during the historic Apollo missions. This watch belongs to a numbered global edition, with this piece individually stamped as 1981 out of 9999 pieces worldwide. The 38.5mm 316L stainless steel case offers a wonderfully compact, vintage-proportioned architecture that steps away from oversized modern dimensions for a lighter, more versatile layout. With a highly compressed lug-to-lug length of just 44.5mm and a svelte case thickness of 12mm, its fluid curves and short lugs deliver an incredibly balanced, ergonomic, flat-wrist presence. The case features a classic brushed-and-polished finish, capped by a unique, highly tactile bidirectional countdown bezel that mirrors Kranz’s original timing instrument. A signed crown sits recessed at 4 o'clock, helping secure a dependable 100-metre (10 ATM) water resistance rating. A Hardlex crystal sits flush over a striking, matte black finish featuring the vintage-applied Seiko "5" logo at the 12 o'clock position. The high-contrast dial layout provides a vibrant aesthetic, utilising applied block indices framed by a classic outer minute track. Balancing daily practicality with visual symmetry, a bilingual day-date window sits neatly positioned at the 3 o'clock mark. The athletic layout features a sweeping seconds hand, while the primary hands and markers are generously coated in premium Seiko LumiBrite to ensure exceptional low-light legibility. On the reverse side, a screwed-down exhibition case back proudly displays the mechanical heartbeat. Inside lies the highly reliable, in-house Automatic Seiko Cal. 4R36 movement, a true industry workhorse operating at a frequency of 21,600 vibrations per hour (3Hz). With 24 jewels, this self-winding calibre offers manual winding and hacking (stop-seconds) functionality. This exclusive reference comes with its original 20mm stainless steel multi-link bracelet, secured with a signed three-fold clasp with a secure lock and push-button release. The watch comes complete with its presentation box and paperwork.

This watch is sold with its original Seiko box, swing tag and paperwork. This exclusive reference comes with its original 20mm stainless steel multi-link bracelet, secured with a signed three-fold clasp with a secure lock and push-button release; all links are provided. The watch is from July 2025 and is sold in worn, but very fair condition, as you can see. The watch comes with our 12-Months Warranty.

As someone who loves a watch with a good story behind it, I think this Seiko is absolutely brilliant, especially with its connection to Gene Kranz and NASA's incredible Apollo missions. Kranz was the legendary Flight Director who helped guide some of the most important moments in space exploration, including Apollo 11 and the extraordinary Apollo 13 rescue. The fact that he wore a Seiko with this distinctive design makes this modern tribute all the more interesting. I love that Seiko has stayed so faithful to the original, particularly that quirky countdown bezel and the wonderfully compact proportions. It's a fantastic little watch in its own right, but knowing the history behind it makes it that bit more special. I would not hesitate to add this watch to your collection today!

Reference : SRPL93K1 (4R36-18F0)
Movement : Automatic Seiko Cal. 4R36
Age : July 2025
Year : 2025
Case Size : 38.5mm
Case Thickness : 12mm
Lug to Lug : 44.5mm
Lugs : 20mm
Condition : Pre-Owned
Box and Papers : Box & Papers
Case Material : Stainless Steel
Warranty : 12-Months Warranty
The wrist model's wrist size is 7inch

Seiko's history began in 1881 when Kintaro Hattori established the K. Hattori retail and repair store. In 1892, Seikosha was established to make wall clocks. 1895 saw the production of their first pocket watch. 1913 saw the launch of their first wristwatch, the Laurel. In 1924, the first Seiko was manufactured. Daini Seikosha (now Seiko Instruments Inc.) was established in 1937. Seiko was listed on the Tokyo Stock Exchange in 1949. The Suwa factory became independent and formed Suwa Seikosha Co., Ltd. (now Seiko Epson Corporation in 1959). In 1956, Seiko launched Marvel as their first true in-house-made watch; they continued to make this watch until 1959. The Seiko Lord Marvel, introduced in 1958, was Seiko's first luxury watch, predating the well-known Grand Seiko. It was designed to rival Swiss brands with a refined design and higher specifications. In 1967, Seiko launched the calibre 5740C watch movement, a significant upgrade over the earlier calibre 5740A, which beat at 18,000, and the 5740B, which beat at 19800. This movement was special because it allowed the watch to run at a high speed of 36,000 beats per hour, making it Japan's first high-frequency watch. In fact, it was only the second watch movement of its kind in the world, following one released by a Swiss brand just a few months earlier. Japan’s first chronograph watch was introduced for the 1964 Tokyo Olympics; it was called the Seiko Crown Chronograph monopusher. Not stopping there, Seiko launched Japan's first true divers' watch, the Seiko Diver’s 150M, fitted with the automatic Calibre 6217, which was later given the nickname “62MAS” by collectors. King Seiko and Grand Seiko emerged as prominent lines within the Seiko brand, with King Seiko making its debut in 1961 as a distinguished luxury watch collection. Grand Seiko, on the other hand, has consistently set the standard for exceptional craftsmanship and precision engineering. In 1965, Seiko introduced a groundbreaking manual-wind movement featuring 25 jewels and hacking seconds, coinciding with the launch of the second-generation KSK series, which boasted sharp, angular cases and robust, flat-ended lugs. The King Seiko KCM was introduced in 1969, featuring a chronometer-certified movement that operates at an impressive 36,000 beats per hour, along with a sleek C-shaped stainless steel case. In 1975, the King and Grand Quartz brands were introduced, built at the Suwa Seikosha and Daini Seikosha factories. In 1977, a high-end Twin Quartz Cal. 92 was produced until 1979, when the 97KQ and 99KQ were introduced. The final 1981 King Quartz Cal. 94KQ movement remained in production until Seiko ended the King Seiko line in 1985. Despite the challenges during the Quartz crisis of the 1970s that led to the gradual shutdown of King Seiko production, Seiko made a comeback in 2022 by reintroducing the classic King Seiko collection. The company name was changed to the Seiko Corporation in 1990. Innovation at Seiko continues today with GPS Solar watches.