2025 Seiko Prospex 1965 Divers “Zakynthos” 40.5mm SPB473J1

Here we have a 2025 Seiko Prospex 1965 Divers “Zakynthos” Limited Edition of 1,000, featuring a 40.5mm stainless steel case finished with Seiko’s super-hard coating for enhanced scratch resistance. This European-exclusive release pays homage to the legendary 62MAS, Japan’s first diver's watch, introduced in 1965, while drawing contemporary inspiration from the idyllic Greek island of Zakynthos. The classic heritage-inspired lugs provide a lug-to-lug length of 48mm and a case thickness of 13.5mm, maintaining a robust yet wearable profile. The screw-down crown and solid screw-in caseback ensure a professional-grade water resistance of 200 metres. A unidirectional 120-click rotating bezel features a dark navy-blue metallic insert with a 60-minute scale, framing a striking wave-textured gradient dial. The dial’s transition from a crisp white at 12 o’clock to a vibrant azure blue at 6 o’clock is designed to evoke the white sandy beaches and crystal-clear Ionian waters of the Mediterranean. Applied baton indexes and central hands are generously coated in Seiko’s Lumibrite for exceptional low-light legibility, with a quick-set date window positioned at 3 o'clock. Protecting this aquatic-themed display is a curved sapphire crystal with an anti-reflective coating on the inner surface. On the reverse, the solid stainless steel caseback is engraved with the iconic Great Wave off Kanagawa and the unique limited-edition serial number. Inside beats the in-house automatic Seiko Calibre 6R35, featuring 24 jewels and a frequency of 21,600 vibrations per hour. This reliable "workhorse" movement provides a modern 70-hour power reserve and supports both hacking and manual winding. The watch comes paired with a 20mm three-link stainless steel bracelet featuring a fold-over safety clasp and diver's extension.

This watch is sold with its original Seiko box and paperwork. paired with a 20mm three-link stainless steel bracelet featuring a fold-over safety clasp and diver's extension, plus a white Seiko rubber strap. The watch is from March 2025 and is sold in a worn condition, but overall it is in fair condition, as you can see in the photos. The watch comes with our 12-Months Warranty.

The Seiko Zakynthos edition keeps the core 62MAS-inspired diver formula intact while adding a subtle Mediterranean twist. The case feels solid and familiar on the wrist, and the gradient wave dial brings just enough character without distracting from its tool-watch nature. Limited to just 1,000 pieces, this is a great opportunity to pick up a fantastic example and add it to your collection today!

Reference : SPB473J1 (6R35-03G0)
Movement : Automatic Seiko Cal. 6R35
Age : March 2025
Year : 2025
Case Size : 40.5mm
Case Thickness : 13.5mm
Lug to Lug : 48mm
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. In 1913, they launched 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 its first true in-house-made watch; it continued production 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 debuting 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 sapphireebeats 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.