Seiko 2C20-5840 | Gold-Tone Octagonal Quartz Dress Watch | c.1984
Early-1980s Seiko formal dressing at its most restrained. The 2C20-5840 pairs a chamfered
octagonal tonneau case with a quietly textured champagne dial — just a single Roman numeral at
twelve, applied baton indices, and a pair of pencil-thin gold hands anchored by a blued jewel.
No seconds subdial, no date, no noise. The integrated ribbed expansion bracelet keeps the
silhouette sleek and period-correct. Sized for a small wrist, it reads as a considered choice
rather than a casual accessory.
Specifications
- Reference: 2C20-5840 RO
- Movement: Seiko Cal. 2C20 — analog quartz, Japan
- Case: Base metal, gold-tone plated; stainless steel caseback
- Case Shape: Octagonal tonneau
- Dial: Champagne linen texture; single Roman numeral XII; applied gold baton indices; gold-tone hands; blued jewel at center
- Bezel: Polished gold-tone, faceted octagonal
- Bracelet: Integrated ribbed gold-tone expansion bracelet
- Crystal: Mineral glass (verify condition)
- Water Resistance: Not rated — vintage dress watch
- Origin: Japan
- Production: circa 1984
Condition
Good vintage. Plating wear is visible on case edges and corners — honest age for a ~40-year-old
dress piece. Dial shows light aging consistent with era; no cracks or missing indices. Bracelet
retains its spring and sits flush. Crystal has minor surface scuffs visible under raking light.
Movement runs; keeping time.
Includes
Watch only.





















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