SEIKO Seikomatic 6206-8010 Automatic Day-Date Men’s Watch – 26 Jewels – Diashock – Vintage Introduction This vintage Seiko Seikomatic 6206-8010 is a refined Japanese automatic wristwatch featuring a silver-tone dial, applied hour markers, a date window at 3 o’clock, and a separate weekday display positioned across the left side of the dial. The elegant dial layout, mechanical 26-jewel movement, and brown leather strap give the watch a distinctive mid-century appearance. It is currently running and offers an attractive combination of classic Japanese design and practical calendar functionality. Historical & Collector Value The Seikomatic name represents an important chapter in Seiko’s development of refined automatic wristwatches. These models combined practical self-winding movements with elegant styling intended for everyday and business use. This example features the Seiko 6206 automatic movement, 26 jewels, and the “Diashock” marking on the dial. Diashock refers to Seiko’s shock-protection system for the movement, a technical feature developed to improve durability during regular wear. The unusual horizontal weekday display, framed date window, applied markers, and restrained silver-tone dial give this watch strong period character. It is not presented as a limited edition, but its mechanical construction, distinctive calendar layout, and authentic vintage appearance make it appealing to collectors of early Seiko automatic watches. Specifications - Brand: Seiko - Collection: Seikomatic - Reference / Case Number: 6206-8010 - Movement: Seiko calibre 6206 automatic mechanical movement - Jewels: 26 jewels - Shock Protection: Diashock - Display: Analogue - Functions: Hours, minutes, central seconds, day, and date - Dial: Silver-tone - Hour Markers: Applied faceted markers - Case Material: Stainless steel - Strap: Brown leather strap - Case-Back Markings: Stainless Steel and Water Proof - Serial Number: 560829 - Accessories: Only the watch and fitted strap shown in the photographs Condition The watch is currently running. Crown operation and time setting have been confirmed. Calendar operation is possible, and the date can be adjusted. However, the correct procedure for changing the weekday display was not determined, so the weekday adjustment function remains unverified. The dial shows visible discoloration, spotting, and age-related deterioration. The hands and applied markers also show signs of ageing. The case, bezel, case back, and crystal have scratches, small marks, rubbing, and general wear consistent with age and previous use. The brown leather strap shows dirt, creasing, surface wear, and cracking. Its remaining durability cannot be guaranteed, and replacement may be preferred depending on the buyer’s intended use. This is a pre-owned / vintage watch. It has signs of use such as scratches, small marks, fading, and wear due to age. Please check all photos carefully, as they are an important part of the description. The watch is running at the time of listing. Time setting and basic functions have been checked unless otherwise stated. Long-term accuracy has not been tested. As this is a used/vintage watch, maintenance or overhaul may be required after purchase. Water resistance is not guaranteed, even if the case or dial has water-resistance markings. Only the items shown in the photos are included. If box, papers, spare links, or accessories are not shown or mentioned, they are not included. Please understand that the condition of vintage watches can be subjective. I describe the item as accurately as possible, but minor signs of age and use should be expected. Service History The watch has been checked for its current operating condition. Time setting, crown operation, and calendar operation have been confirmed as described above. The weekday adjustment function has not been verified. Shipping & Customs The watch will be carefully packaged and shipped internationally with tracking where available. Customs duties, import taxes, VAT, handling charges, and any other fees imposed by the destination country are the sole responsibility of the buyer. Please check the import regulations in your country before bidding. 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.