Seiko revived King Seiko, its 1961 rival to Grand Seiko, as a modern regular collection

In 1960 Seiko launched Grand Seiko as the summit of domestic watchmaking; one year later came King Seiko, built for performance, advanced design and an honest price — the two lines competed inside the same company and together drove the golden era of Japanese mechanical watches. The second-generation King Seiko, nicknamed KSK, arrived in 1965 with water resistance, hacking seconds and a sharply faceted box-crystal design that defined the family look.

The quartz revolution of the 1970s ended both lines' mechanical era; King Seiko was discontinued and sat dormant for decades while Grand Seiko was later spun into an independent brand.

On 25 January 2022 Seiko announced the revival: five regular King Seiko models inspired by the 1965 KSK — faceted cases, multi-cut indices, bold hands, box sapphire crystals — with mechanical movements updated for today (thin automatic calibers, about 70-hour power reserve), priced from ¥198,000 including tax. Sales began at boutiques worldwide on 18 February 2022 and at Seiko Watch Salons from July.

The follow-up shook the collector tree: for July 2022 Seiko added a KSK-design limited edition (1,700 pieces worldwide at ¥385,000) based on the champagne-silver 1965 original with an 11.4mm thin case, plus a Kameido wisteria special edition for Seiko boutiques. The classic bracelet, the shield medallion and the reflected history made the revived line feel less like reissue, more like continuation.

King Seiko returned as a permanent collection on 18 February 2022 from ¥198,000, with KSK-design limited and boutique editions following.

The 1965 KSK design language is instantly recognizable and deeply loved, so the revival skipped the hardest part of any new premium line: building a design identity

Reviving King Seiko cost far less than inventing a new mid-premium brand, while filling the price gap between the accessible Seiko range and Grand Seiko

The story — the rival that beat Grand Seiko internally on price-performance — gave enthusiasts a narrative Grand Seiko itself could not supply

Mechanical upgrades (thin 6L35/6R31 calibers, long power reserve) kept the nostalgia credible to modern buyers without betraying the original proportions

When reviving a heritage line, the original design code is the cheapest asset: King Seiko returned as the 1965 KSK silhouette re-engineered.

King Seiko has remained a live, regularly updated collection since 2022, with the KSK-derived styling anchoring Seiko's '1960s heritage' premium tier and appearing at every Seiko showcase. It also completed the brand family puzzle Seiko had left open for 45 years: Grand Seiko the top, King Seiko the enthusiast middle, Seiko the base. The revival turned an archive footnote into a profitable second ladder.