{"product_id":"vintage-1965-japan-seiko-sea-horse-66-7000-17jewels-hand-winding","title":"Vintage 1965 JAPAN SEIKO SEA HORSE 66-7000 17Jewels Hand-winding.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1965 JAPAN SEIKO SEA HORSE 66-7000 17Jewels Hand-winding.\u003c\/h3\u003e\u003cp\u003eWelcome to my auction!\u003cbr\u003eI am Japanese who live in Tokyo.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 24px; color : #2B0000; margin-bottom: 18px;\"\u003eItem description\u003c\/h4\u003e\u003cdiv style=\"font-size: 24px; color:red; margin: 0 50px 18px 35px;\"\u003e\nIt's a SEIKO Hand-winding Watch, \u003cb\u003eSEA HORSE 66-7000 17Jewels \u003c\/b\u003e.\u003cbr\u003e\n\u003cb\u003eIt's in good used condition.\u003c\/b\u003e\u003cbr\u003e\nIt's difficult to find this valuable watch in such a good condition.\nHighly recommended for SEIKO collectors!\n\u003c\/div\u003e\n\u003cdl style=\"margin:0 0 34px 90px\"\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eMovement : \u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\u003cul\u003e\n\u003cli\u003ePet name : SEA HORSE.\u003c\/li\u003e\n\u003cli\u003eCaliber number : 66A,B.\u003c\/li\u003e\n\u003cli\u003eMovement : Hand-winding.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 18000bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1960's.\u003c\/li\u003e\n\u003cli\u003eFactory : Kameido.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/dd\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eExternals : \u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\u003cul\u003e\n\u003cli\u003eSerial number : 5200417.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 66-7000T.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 32.38mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 17mm.\u003c\/li\u003e\n\u003cli\u003eBand : Wrist size that can be worn is Up to about 182mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/dd\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eCondition : \u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\u003cul\u003e\n\u003cli\u003eUsed, it runs well.\u003c\/li\u003e\n\u003cli\u003eThe day difference time of an used watch is about +-1 minute \/ day.\u003c\/li\u003e\n\u003cli\u003eFor practical, everyday use, it would be advisable to have the movement cleaned and oiled.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/dd\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cli\u003e\n\u003cb\u003eThe Pioneer of Sport-Dresser Design (1965):\u003c\/b\u003e In **1965**, the **Seiko Sea Horse** occupied a unique position as a \"\"Water Proof\"\" dress watch. While not a professional diver, the reference **66-7000** was designed for the active lifestyle of the mid-60s, offering enhanced durability against the elements. It bridged the gap between formal attire and weekend adventure, making it one of the most versatile and beloved models from the **Daini Seikosha (Kameido)** factory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Reliable Caliber 66A:\u003c\/b\u003e This watch is powered by the **17-jewel Caliber 66**, a manual-wind workhorse operating at **18,000 vibrations per hour (vph)**. Known for its simple, robust architecture, the Caliber 66 was a \"\"no-nonsense\"\" movement that prioritized long-term reliability and ease of service. In **1965**, this movement was the heart of Seiko’s mid-range manual lineup, favored for its steady performance and tactile winding feel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIconic \"\"Sea Horse\"\" Heritage:\u003c\/b\u003e The defining characteristic of the reference **66-7000** is the **etched Sea Horse logo** on the case back. This emblem was Seiko's hallmark for its water-resistant models of the era. To ensure this protection, the case featured a beefier construction and a screw-down case back, which was a significant technical upgrade for a daily-use watch in **1965**.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMid-Century Minimalist Dial:\u003c\/b\u003e The dial of the **66-7000** is a masterclass in 1960s functionalism. It typically features a clean, silver sunburst finish with **bold, applied baton indices** and sharp \"\"Dauphine\"\" hands. The omission of a date window on this specific reference enhances the perfect symmetry and timeless aesthetic, reflecting the \"\"Zen\"\" simplicity that Japanese design is internationally praised for.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eA Durable Mechanical Classic:\u003c\/b\u003e Produced in **1965**, the Sea Horse 66-7000 remains a staple for vintage collectors due to its rugged charm and historical significance. It represents the early days of Seiko’s obsession with \"\"Water Proof\"\" technology—a path that eventually led to their world-class professional divers. Its classic proportions and mechanical honesty make it a quintessential example of **mid-century Japanese tool-watch elegance**.\u003c\/li\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl style=\"margin:0 0 34px 40px\"\u003e\n\u003cdt style=\"font-size: 24px;font-weight: bolder;\"\u003eFor more information, please look at the pictures.\u003c\/dt\u003e\n\u003cdd\u003e\u003cdiv style=\"margin: 14px 0 40px 0;\"\u003e\u003cimg src=\"https:\/\/nonkun.boy.jp\/img_ebay\/v1219497602.jpg\"\u003e\u003c\/div\u003e\u003c\/dd\u003e\n\u003cdt style=\"font-size: 24px;font-weight: bolder;\"\u003eNotes\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cul style=\"margin-bottom: 18px;\"\u003e\n\u003cli\u003e\n\u003cb\u003eBefore buying.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003eThe vintage watches we sell are inspected and adjusted so they work fine. However, since it is an vintage watch, Please purchase on the assumption that it will be repaired.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTo prevent shipping accidents.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003ePlease monitor the tracking number until the item arrives and if it stagnates, please investigate at your country post office. Also, please confirm the item when you receive the item.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAbout import taxes.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003eTaxes such as import duties and VAT are not included in the item price or shipping charges, except for items shipped to the US. When you purchase, you will likely be required to pay these fees in your country.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAbout Payment, Shipping, Return.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003ePayment, Shipping, Return are in accordance with eBay's business policies.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cbr\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":52144502636865,"sku":"v1219497602","price":65900.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_4d07481e-239b-4c39-98bd-b758eb823e2c.jpg?v=1787883917","url":"https:\/\/nonkun.com\/en\/products\/vintage-1965-japan-seiko-sea-horse-66-7000-17jewels-hand-winding","provider":"NONKUN Japan","version":"1.0","type":"link"}