Seiko - Hunter-case quartz sub-seconds - 7N21-0AE0 - 1990-1999

Introduction

A gold-toned open-face pocket watch by Seiko, powered by the quartz caliber 7N21, housed in a full hunter case with a snap-open front cover and a matching curb-link chain with a bar clip. The white dial carries Roman numerals in black, a sub-seconds register at the 6 o'clock position, and the SEIKO signature printed above centre. The exterior caseback is stamped SEIKO / STAINLESS STEEL / 7N21-0AE0 / MADE IN JAPAN / 390045.

Historical / Era context

Seiko has produced open-face pocket watches across multiple eras, and this piece continues that tradition in quartz form with the 7N21 caliber — a reliable, slim quartz movement manufactured in Japan. The hunter case format, Roman chapter ring, and sub-seconds layout echo the classic pocket-watch aesthetic that Seiko carried from its Seikosha heritage into the modern period. The stainless-steel base construction with gold-tone plating keeps the appearance luxurious while the quartz movement ensures low-maintenance ownership.

Condition

The watch is running and keeping good time. The watch was checked running at the time of listing with a fresh battery. Battery life and long-term accuracy are not guaranteed. As a vintage timepiece it may benefit from a service.

Case: The case body, bezel rim, and hinged cover show scattered fine surface scratches consistent with normal handling over time. The plating retains a good overall coverage with no heavy losses visible. The chain and bar clip are present and intact, showing light surface marks.

Dial: The dial is clean and legible throughout. The Roman numerals, minute track, and SEIKO signature are all sharp with no staining, fading, or discolouration visible.

Crystal: The crystal is clear with no chips or cracks visible.

Movement: The watch is running. The movement is the Seiko quartz caliber 7N21, visible with the caseback opened, presenting a green-lacquered mainplate typical of this caliber. The movement appears clean and unmodified.

Accessories: The original curb-link chain with bar clip is included. No box or papers are present.

Please review all photographs carefully for the detailed condition.

Specifications

Brand: Seiko
Model: SEIKO
Reference: 7N21-0AE0
Movement: Quartz (quartz)
Case material: Stainless steel
Case diameter: approx. 45 mm
Total length including crown: approx. 55 mm
Total length including crown and ring: approx. 58.5 mm
Dial color: White
Period: 1990-1999
Weight: approx. 62 g
Accessories: Chain with bar clip
In working order: Yes
Timekeeping: keeping good time (checked running with a fresh battery)

Closing note

A handsome and well-preserved Seiko quartz hunter pocket watch in the classic Roman-dial style, ready to wear or display without servicing. Please examine all photographs closely before bidding, as they form part of the item description.
As with all vintage timepieces, please examine the provided photographs carefully to satisfy yourself with the condition before bidding. The watch is sold as a vintage collectible; water resistance and future maintenance are not guaranteed.
The item is carefully packed and shipped from Japan with tracking.
Import duties, taxes and customs charges are the buyer's responsibility.