Seiko 7A28-7020 Quartz Chronograph — Brown & Gold Dial, Fully Serviced

A fully serviced Seiko 7A28-7020 quartz chronograph, distinguished by its handsome brown dial with gold accents and tri-register layout. Built around the legendary 7A28 — the world’s first analog quartz chronograph movement, an all-metal caliber engineered to a level rarely seen in quartz watches — this example retains its original case, dial, hands, and bracelet. It has been fully disassembled, cleaned, lubricated, and verified at the bench, with a new crystal and fresh gaskets installed. Turn-key and ready to wear.

Video Overview

Bench documentation and overview of this Seiko quartz chronograph.

If the video does not appear, view it directly here: https://youtu.be/5Fma-VtbNTI

Highlights

• Model: Seiko 7A28-7020 quartz chronograph
• Movement: Seiko 7A28a high-grade analog quartz chronograph caliber
• Dial: Brown dial with gold accents and tri-register layout
• Originality: Original case, dial, hands, and bracelet
• Crystal: New crystal installed; original crystal included in the sale
• Gaskets: All new (crown, pushers, caseback)
• Accuracy: Excellent accuracy, near +0.07 seconds per day
• Functions: Chronograph operates correctly and resets as designed
• Power: Fresh battery installed

Condition & Authenticity Notes

• Case presents with clean lines and honest wear consistent with age.
• Brown dial with gold accents and the hands are original.
• Original Seiko bracelet included.

Second Tour Timeworks — restored to be worn, verified to be trusted.