Master Quartz Anniversary Clock

Master Quartz refers to a series of quartz-movement timepieces commonly styled as Anniversary Clocks (or 400-day clocks). These clocks are characterized by their glass or plastic domes and rotating pendulums. While the aesthetic is inspired by traditional German mechanical engineering, modern Master Quartz versions were produced mainly for the mass retail market starting in the late 20th century.

Most Master Quartz products were manufactured in East Asia, particularly China, utilizing standardized quartz movements that replaced the high-maintenance mechanical springs of the original versions. They were distributed globally through various department stores and specialty gift retailers. Ownership of the brand name 'Master Quartz' is often fragmented among generic manufacturers and private-label distributors rather than a single multinational corporation, though many components and final assemblies are linked to Chinese horological manufacturing hubs.