King Seiko vs. Grand Seiko: How the Two Historically-Linked Lines Differ Today
1960s in-house rivals on different paths. Grand Seiko has been a fully independent brand since Baselworld 2017 and runs three in-house movement families (9S mechanical, 9F quartz, 9R Spring Drive). King Seiko returned as a permanent Seiko line in 2022; its current dress generation — SJE103/SJE105/SJE107, caliber 6L35, available since October 2024 — is $3,300, above Grand Seiko's cheapest 9F quartz at around $2,200.
