Preliminary identification
Photo reference
2 uploaded photos
Overview
This is a classic 1970s stainless steel manual-wind timepiece featuring a sunburst dial and a robust 17-jewel movement. The 'lightning bolt' logo on the dial and caseback identifies it as a product of the Daini Seikosha factory, one of two internal Seiko divisions that famously competed to drive innovation.
Story
In June 1972, this watch left the Daini factory during a golden era of Japanese horology. It represents the 'Grammar of Design' philosophy that helped Seiko beat the Swiss in accuracy trials. This was a reliable daily companion for the modern professional.
Maker / Origin
Seiko's history is unique for its internal rivalry between the Suwa and Daini factories, which pushed both to create world-class movements. Daini Seikosha, represented by the lightning bolt logo, was known for its technical precision and avant-garde designs. This competition eventually led Seiko to win the prestigious Geneva Observatory trials.
Condition & Value
The watch head shows honest wear with some scratches on the crystal and case. The bracelet is currently detached, and the spring bars may need replacement. The dial appears remarkably clean with no visible water damage, which is a major plus for value. Value is driven by the 'Daini' factory mark and the clean dial.
Full Research
Sold comps, value drivers, and venue guidance pulled from recent auction results.
Build on this identification
Layer in sold comps, value drivers, and venue guidance.
Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.
Best Venue
Specialty auction or a focused dealer with buyers already in this lane.
Signed example with light edge wear and original frame.
Comparable format with stronger provenance and cleaner surface.
Smaller related piece with visible craquelure and trimmed margins.
Period match with softer condition and weaker subject matter.
Close market lane comp with similar material and presentation.