{"product_id":"vintage-1977-japan-seiko-silverwave-0923-7010-9jewels-quartz","title":"Vintage 1977 JAPAN SEIKO SilverWave 0923-7010 9Jewels Quartz.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1977 JAPAN SEIKO SilverWave 0923-7010 9Jewels Quartz.\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 Quartz Watch, \u003cb\u003eSilverWave 0923-7010 9Jewels \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\u003eCaliber number : 0923A.\u003c\/li\u003e\n\u003cli\u003eMovement : Quartz.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1974's.\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 : 722090.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 0923-8010T.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36.8mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\u003c\/li\u003e\n\u003cli\u003eBand : Wrist size that can be worn is Up to about 210mm.\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.\u003cb\u003e Battery replaced\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuick set(Day\/Date) : Okay. \u003cbr\u003eSet the day of the week can be in English or Kanji.\u003cstrong\u003e\u003cfont color=\"#0039f3\"\u003e(English only: Black text and blue text.)\u003c\/font\u003e\u003c\/strong\u003e\u003cbr\u003eSet of the date : The set at one stage pulling the crown.\u003c\/li\u003e\n\u003cli\u003eApproximate watch rate at Japan : Quartz.\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 High-Grade Dawn of 1977 SilverWave Quartz Heritage (1977):\u003c\/b\u003e Manufactured in **1977**—during Suwa Seikosha's aggressive expansion of high-reliability quartz timepieces—the **Seiko SilverWave** reference **0923-7010** represents the modern evolution of Seiko's legendary water-resistant sports-dress line. Originally born in the 1960s as a mechanical diver-adjacent dress watch, the SilverWave platform in the late 1970s combined robust sports architecture with early high-precision solid-state quartz tech.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Over-Engineered 9-Jewel Caliber 0923 Quartz Heart:\u003c\/b\u003e Powering this historic timepiece is the robust **9-jewel Caliber 0923A**, an early high-grade quartz movement operating at **32,768 Hz**. Incorporating an unusually high **9-jewel count** for a 1970s quartz engine to reduce mechanical wheel train wear, this Suwa movement features a quick-set dual-calendar assembly, hacking second-hand function, and an impressive factory-rated accuracy of **±15 seconds per month**.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"7010\"\" Screw-Down Case and SilverWave Geometry:\u003c\/b\u003e Sourced in a heavy-duty solid stainless steel case, the reference **0923-7010** is engineered for high durability with its reinforced **screw-down case back** and protected crown layout. Adhering to late-1970s Tanaka **\"\"Grammar of Design\"\"** principles, the case features thick, sweeping lug shoulders and flat Zaratsu-polished planes that provide a commanding, low-profile stance on the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful Dual-Calendar Dial Harmony and Iconic Wave Insignia:\u003c\/b\u003e The dial of the **0923-7010** exhibits exceptional visual clarity, set against a radiant silver sunburst canvas decorated with **hand-applied, multifaceted rectangular block indices**. Framed symmetrically at 3 o'clock, the dual-calendar aperture houses a **bilingual (English\/Kanji) day disk** alongside a quick-set date wheel, proudly anchored by the applied metal **SilverWave tsunami wave emblem** above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Investment-Grade Pillar of Suwa's Quartz Sports Lineage:\u003c\/b\u003e Produced during the prime golden decade of Japanese quartz innovation in **1977**, the 0923-7010 9-jewel SilverWave stands as a highly coveted, universally respected cornerstone reference. It captures the vital historical bridge where Seiko's rugged tool-watch construction seamlessly merged with top-tier early quartz micro-engineering.\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\/j1241404521.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\"","brand":"Seiko","offers":[{"title":"Default Title","offer_id":52243712999745,"sku":"j1241404521","price":73700.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_b73ae1a9-1e07-40d4-b8ce-ccdaf4bc1b6b.jpg?v=1789972340","url":"https:\/\/nonkun.com\/products\/vintage-1977-japan-seiko-silverwave-0923-7010-9jewels-quartz","provider":"NONKUN Japan","version":"1.0","type":"link"}