Seiko - 没有保留价 - Seikomatic 6206-8120 - 男士 - 1966

Introduction

Offered here is a vintage Seiko Seikomatic automatic, reference 6206-8120, featuring a classic day-date (Weekdater) display at 3 o’clock. The clean silver dial with distinctive applied markers and the red “SUNDAY” day indication gives this piece an unmistakable mid-century Seiko character—elegant, practical, and highly wearable.

Historical & Collector Value

The Seikomatic series represents an important era in Seiko’s history, when the brand was refining its in-house mechanical movements and producing durable daily-wear watches with sharp, modern designs. Day-date models from the 6206 family are especially appreciated by collectors for their robust automatic architecture, practical calendar function (often referred to as a “Weekdater”), and the variety of dial/case designs produced in relatively short periods. This reference is a strong example of that period: restrained, functional, and distinctly Seiko.

Specifications
Brand: Seiko
Model: Seikomatic (dial signed “SEIKOMATIC / DIASHOCK 26J”)
Reference / Case No.: 6206-8120
Movement: Automatic (mechanical), 26 jewels (6206 series)
Functions: Time, Day-Date (Weekdater) display
Dial: Silver tone with grid-style layout, applied markers
Calendar: Day and date at 3 o’clock (red Sunday display)
Case Material: Stainless steel (see caseback)
Case Size: 34.4 mm (excluding crown)
Thickness: 11.6 mm
Lug Width: 20 mm
Weight: 49 g
Wrist Size: Fits up to approx. 19 cm (with current strap)
Crystal: Clear; may show minor signs consistent with age
Strap: New leather strap (aftermarket)
Accessories: Watch only (no box / papers)
Condition

This is a vintage watch and shows visible wear, scratches, and signs of use on the case and caseback consistent with age. The dial presents cleanly overall and the calendar windows are clear and legible. Please judge the cosmetic condition carefully from the photos, as they form an important part of the description.

Service History
All functions have been checked and the watch is running.
Overhaul (OH) history is unknown (no service documentation available). As with any vintage mechanical watch, a service is recommended depending on the buyer’s standards for long-term accuracy and daily use.
Shipping & Customs

The watch will be carefully packed and shipped with tracking and appropriate protection. International buyers are responsible for any customs duties, VAT, and import taxes.

IMPORTANT – Customs & Import Taxes
If customs duties / VAT are not paid by the buyer, the parcel cannot be delivered and will be returned. In such cases, the sale will not be refunded. Please make sure to pay all customs charges promptly.