Seiko Solar 100M Wristwatch

Seiko is a world-renowned watchmaker founded in Tokyo, Japan, in 1881 by Kintarō Hattori. The brand is famous for introducing the world's first commercial quartz watch and for its innovations in solar and spring drive technology. Starting as a jewelry shop, it eventually evolved into one of the most respected integrated manufacturers in the horology industry.

While the brand's high-end movements and luxury lines (like Grand Seiko) are predominantly manufactured in Japan, their consumer-grade solar and automatic watches are produced across multiple locations. This includes manufacturing facilities in Japan, Malaysia, and China. The specific 'Solar 100M' series typically features Japanese movements but may be assembled in various regional hubs to meet global demand.

Today, Seiko remains under the ownership of Seiko Group Corporation. It operates as a vertically integrated manufacturer, meaning they produce almost every component of their watches in-house, from the hairsprings to the lubricants. This level of self-sufficiency has cemented their status as a staple in both the entry-level and luxury watch markets worldwide.