Seiko - Open-Face Precision Second-Setting 21-Jewel - 6110-0010 - 1970-1979

Introduction

This is a Seiko Precision open-face pocket watch powered by a 21-jewel manual-winding movement, signed on the dial 'SEIKO PRECISION 21 JEWELS' with the additional notation 'SECOND SETTING' below centre. The caseback carries the stamp '(ACRP) 6110-0010 6D2628 JAPAN A', identifying a white base-metal plating mark (ACRP), the case reference, and a production serial.

Historical / Era context

Seiko's Precision-grade open-face pocket watches represent the continuation of a long tradition of high-jewel-count, regulation-quality movements produced in Japan from the pre-war Seikosha era through to the 1970s. The 'SECOND SETTING' inscription on the dial refers to the ability to halt and restart the seconds hand from zero — a feature valued for synchronising the watch to a time signal to the exact second. This feature, and the 21-jewel grade, place this watch firmly in Seiko's higher-tier open-face production.

Condition

The watch is running and keeping good time. The watch was checked lying flat (dial up) after a full wind. This is a spot check at the time of listing; as a vintage mechanical watch the rate in actual wear varies with position and winding state, and long-term accuracy is not guaranteed. As a vintage timepiece it may benefit from a service.

Case: The case body, bezel rim and caseback exterior show scattered fine scratches and light surface marks consistent with normal handling over the years. The caseback exterior bears visible shallow scuff marks across the centre field. The crown and bow ring are intact and undamaged. Overall the case retains a good level of polish with no deep dents or deformations.

Dial: The white dial is clean and legible throughout. The printed Arabic numerals and 'SEIKO PRECISION 21 JEWELS' and 'SECOND SETTING' text are sharp and without fading. No staining, discolouration or spotting is visible on the dial surface.

Crystal: The crystal is clear and free of cracks. There are light surface marks consistent with age but none that impair legibility of the dial beneath.

Movement: The watch is running. With the caseback opened, the Seiko caliber 6110A is visible: a 21-jewel manual-winding movement with a nicely finished gilt mainplate, visible red jewel settings, and clean gear train. The movement plate is signed 'SEIKO 6110A JAPAN 21 JEWELS'.

Accessories: No chain, box, or papers are included. The watch is sold as shown.

Please review all photographs carefully for the detailed condition.

Specifications

Brand: Seiko
Model: SEIKO PRECISION
Reference: 6110-0010
Movement: Manual winding mechanical movement
Jewels: 21 jewels
Case material: Chromed
Case diameter: approx. 50.2 mm
Total length including crown: approx. 62.4 mm
Total length including crown and ring: approx. 72.8 mm
Dial color: White
Period: 1970-1979
Weight: approx. 82 g
Accessories: None (watch only)
In working order: Yes
Timekeeping: keeping good time (checked lying flat after a full wind)

Closing note

A well-preserved example of Seiko's 21-jewel Precision-grade open-face pocket watch with the desirable second-setting function, making it an appealing piece for collectors of Japanese horology and vintage precision timepieces. Please examine all photographs carefully as they form part of the 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.