The History of Seiko Wristwatches

Seiko Watches

The history of Japanese wristwatches begins in 1913. The Hattori (Seiko) group had established itself as one of the most important dealers and manufacturers of timepieces in Japan, and at the Seikosha factory, founded in 1892, various pocket watch models were already in production. With the arrival of wristwatches from Europe and America on the market, and the gradual rise in popularity of these products, which were a novelty compared …

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History of the Seiko 5 Sports

Seiko Five Sports

The renowned and enduring Seiko 5 Sports series was launched in 1968, with the goal of crafting sports watches tailored for a younger and more dynamic audience compared to the classic Seiko 5. From the outset, the 5 Sports models have been distinguished by their robust construction and the reliability of their automatic movements. They also offer good water resistance, making them suitable for water activities, and boast a wide …

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Seiko 5 Sports: The Kamen Rider Reborn

Seiko has introduced two new models that promise to catch the attention of enthusiasts: the Seiko 5 Sports Heritage Design Re-creation SRPL03 and SRPL05 (SBSA269 and SBSA271 for the Japanese market). The two models, which will be available from July 6 2024, are limited to 9,999 pieces each worldwide and are inspired by the legendary Seiko 5126-8090, known as “Kamen Rider” for its appearance in the famous Japanese TV series. …

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Seiko Movements List


The following is a list of watch movements produced by Seiko since the introduction of the modern coding system in the 1960s. The movements are organized into groups and listed alphabetically. By clicking on the name of the movement, you can view its technical information and manuals, when available, along with the watch models and their respective parts lists.

The real history of the Seiko Laurel

Seiko Laurel

The Laurel is one of the most significant and emblematic timepieces in the history of Seiko and Japanese watchmaking, to the extent that it has been awarded the certification of “Heritage of Mechanical Engineering” from the Japan Society of Mechanical Engineers. Was the Laurel truly the first wristwatch produced by Seiko?In this article, I will try to clarify the history of the Laurel, its introduction dates, and what actually was …

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Seiko Cronos Water Proof

Seiko Cronos Waterproof

In 1959, Seiko introduced its first “WaterProof” wristwatch to the Japanese market, featuring a water resistance of 50 meters. The Cronos WaterProof, with case code J13028, is featured alongside the Laurel Alpinist in the December 1959 issue of Seiko News. The Cronos WaterProof represents Seiko’s response to a growing market demand for water-resistant watches suitable for sports and outdoor activities. It was presented as a luxury waterproof watch, safe for …

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Seiko Slim Turtle 6309

Slim Turtle 6309

In 1982, Seiko introduced the 150m Slim Turtle divers with the automatic caliber 6309 to the export market, the same movement used for the export versions of the Seiko Turtle. In this guide, we will explore the history and features of all the known models in this series. Index Introduction to the 6309 divers The series of automatic 6309 divers started with the Seiko Turtle in 1976.While the Turtle version …

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Seiko Slim Turtle 7548

Seiko divers 7548

In 1978, Seiko introduced the first 150 m diver’s watch with quartz movement in history, the 7548 Slim Turtle, alongside the 600 m and 300 m quartz divers launched the same year. In this guide, we will examine all the known variants of the 7548 divers, produced until the mid-1980s. Index The origins of the Seiko Slim Turtle The first Slim Turtle series, based on the quartz caliber 7548, was …

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Seiko Transocean complete guide

Seiko Transocean

Seiko Transocean watches were introduced to the market in January 2016, presented as watches with a sporty-elegant design suitable for every situation, including city life and office work, but with all the features of professional divers. The careful design is complemented by high-quality materials: a bezel entirely made of ceramic, sapphire with anti-reflective coating on the inner surface, steel (titanium for the Spring Drive models) with Diashield treatment. Seiko Transocean …

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Seiko Diver’s Chronological Guide

Seiko Diver

The world’s first diver watch featuring a Hi-Beat movement, the first to sport a titanium case, and the first equipped with a quartz movement: these are just a few of the numerous pioneering achievements by Seiko, accomplished over decades of research and development in the field of underwater timepieces. In this guide, you will discover the diver watch models arranged in chronological order, with a focus on those of the …

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