Editor's Note
This editor’s note highlights the key facts and market implications behind “Seiko’s High-End Quartz Watch: The 1970s-Made ‘S”, with emphasis on sourcing, product fit, fabrication, logistics, or buyer impact.
The antique watch specialist site "LowBEAT Marketplace" daily updates with the latest arrivals from its partner watch shops. From these, the editorial team presents information on noteworthy models.
In 1969, at the height of Japan's period of rapid economic growth, Seiko accelerated the development of quartz wristwatches and released the world's first commercially available quartz wristwatch, the "Astron," on December 25th of that year. Records indicate that the hybrid IC used in the initial models, which was hand-soldered, had durability issues and was later replaced with countermeasure parts.
Subsequently, by enabling the in-house development and manufacturing of ICs, Seiko achieved a dramatic evolution in quartz watch development. Furthermore, by advancing this IC manufacturing technology, it became possible to produce microcomputer chips for industrial and household appliances, laying the foundation for Seiko's current status as a comprehensive electronic device manufacturer, including companies like Seiko Instruments and Epson.
The model introduced here is the Superior Quartz, manufactured in 1976 by Suwa Seikosha, the predecessor of the later Seiko Epson. As the name "Superior" suggests, it exudes a special atmosphere with its delicately embossed dial surface, harmoniously coordinated three-dimensional and flat indices, and minute markers all engraved via typesetting. The gold-plated case also features a robust design emphasizing flat surfaces, finished with a super finish using the Zaratsu polishing technique characteristic of Seiko. The still brilliantly shining finish conveys the dignity of a flagship model. Additionally, the original Hardlex crystal is coated with an anti-reflective coating, which causes it to shimmer with faint green or purple hues when hit by light. While quartz wristwatches often have an image of short lifespan, watches with movements prioritizing durability, like this one, prove that long-term use is entirely possible with regular overhaul, battery replacement, and proper care to avoid moisture and water. However, it should be noted that structure, materials, and design philosophy differ by manufacturer, and components like capacitors and ICs within the electronic circuit have their own lifespans, so it cannot be categorically stated that all quartz watches are long-lasting. For users of quartz watches other than this specific piece, it is recommended to avoid high temperatures and humidity, prevent battery leakage, and, when the watch stops due to a dead battery, have it replaced promptly at a reliable watch specialist. Battery leakage can corrode electrical contacts and circuits, potentially becoming the primary cause of quartz watch failure. For those who replace batteries themselves, it is advisable to use watch-specific silver oxide batteries, which are less prone to leakage.
Source: Read the original article | Published: August 26, 2025