Seiko - Open-face 24-jewel automatic - 2220-0580 - 1970-1979

Introduction

This is a Seiko open-face pocket watch featuring a champagne-toned textured dial with bold Arabic numerals and elegant black sword-style hands, signed 'SEIKO' at the upper centre. The movement is an automatic (self-winding) calibre 2220A, rated at 24 jewels, housed in a gold-plated open-face case with a bow-and-crown pendant. The exterior caseback is stamped with the reference 2220-0580 and the case material designation ASGP (Anti-corrosive Steel Gold Plated), confirming a gold-plated finish over a steel base.

Historical / Era context

Seiko has a long tradition of producing high-grade open-face pocket watches, and the calibre 2220 family represents a refined chapter in that heritage — an automatic pocket-watch movement produced in Japan during the latter decades of the Showa era. The 24-jewel rating places this movement firmly in the upper tier of Seiko's civilian pocket-watch output, reflecting a commitment to precision that extends back to the company's earliest pocket-watch production. The ASGP case designation is Seiko's own standard for gold-plated steel, offering a warm and durable dress finish appropriate for a watch of this calibre.

Condition

The watch is running at the time of listing.

Case: The gold-plated case shows honest age-related wear consistent with use: the caseback exterior has developed a greenish patina and carries numerous light to moderate surface scratches, and the inner dust cover (inner caseback) shows heavy scratching with some plating loss and discolouration. The main case band and bezel retain their shape and most of their plating, with general wear marks but no dents or deformation noted.

Dial: The champagne dial is legible and retains good contrast; the Arabic numerals and 'SEIKO' signature are sharp and clear. There are light superficial marks and minor soil visible under close inspection, but overall the dial presents well without cracks, chips, or significant staining.

Crystal: The acrylic crystal shows light to moderate surface scratches consistent with age and use; it is not cracked but clarity is mildly reduced in raking light due to fine surface marks.

Movement: The movement is confirmed running well. The automatic calibre 2220A (24 jewels) winds freely by rotor and the watch is keeping time; no accuracy issues are noted.

Accessories: No chain, box, or papers are included. The watch is offered as pictured only.

Please review all photographs carefully for the detailed condition.

Specifications

Brand: Seiko
Model: SEIKO
Reference: 2220-0580
Movement: Manual winding mechanical movement
Jewels: 24 jewels
Case material: Gold-plated
Case diameter: approx. 32 mm
Total length including crown: approx. 41.7 mm
Total length including crown and ring: approx. 47 mm
Dial color: Champagne
Period: 1970-1979
Weight: approx. 27 g
Accessories: None (watch only)
In working order: Yes

Closing note

A charming and wearable vintage Seiko automatic pocket watch with a high-jewel movement that is running well — an attractive piece for collectors of Japanese automatic pocket watches or for everyday dress use. Please examine all photos closely, 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; long-term accuracy, 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.