{"product_id":"vintage-1971-japan-seiko-skyliner-calendar-6102-8000-21jewels-hand-winding-1","title":"Vintage 1971 JAPAN SEIKO SKYLINER CALENDAR 6102-8000 21Jewels Hand-winding.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1971 JAPAN SEIKO SKYLINER CALENDAR 6102-8000 21Jewels 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\u003eSKYLINER CALENDAR 6102-8000 21Jewels \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 : 61 SKYLINER CALENDAR .\u003c\/li\u003e\n\u003cli\u003eCaliber number : 6102A.\u003c\/li\u003e\n\u003cli\u003eMovement : Hand-winding.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 21600.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1968's.\u003c\/li\u003e\n\u003cli\u003eFactory : Suwa.\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 : 1D2579.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 6102-8000U.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36.97mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\u003c\/li\u003e\n\u003cli\u003eBand : New Leather Strap.\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\u003eQuick set(Day\/Date) : Okay.\u003cbr\u003eSet of the date : The set at one stage pulling the crown.\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 Standard of Early-70s Minimalist Dress Luxury (1971):\u003c\/b\u003e In **1971**, during a historic year marked by rapid lifestyle diversification and peak mechanical maturation right before the full quartz transition, the **Seiko Skyliner Calendar** stood as the definitive choice for the modernizing executive. Carrying reference **6102-8000**, this refined dress instrument was manufactured by the **Suwa Seikosha** factory. Positioned as a sleek, highly reliable manual-wind alternative to thick automatics, it captured the disciplined, minimalist design philosophy that defined Japanese professional style during the Showa era.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Modernized 21-Jewel Caliber 6102 Calendar Engine:\u003c\/b\u003e This watch is powered by the magnificent **21-jewel Caliber 6102**, a highly regarded manual-wind engine operating at a classic frequency of **21,600 vibrations per hour (vph)**. Evolving from the legendary 62-series foundations, the 6102 caliber optimized the gear train layout to integrate a practical calendar mechanism while preserving an exceptionally low profile. The upscale **21-jewel specification** indicates a premium factory execution, deploying extra synthetic rubies to ensure an exceptionally smooth, tactile winding engagement and long-term daily stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"8000\"\" Sharp Grammar of Design Case Mastery:\u003c\/b\u003e The reference **6102-8000** is globally celebrated among vintage purists for its flawless implementation of Taro Tanaka's foundational **\"\"Grammar of Design\"\"** philosophy. The solid stainless steel case features an extraordinarily thin, flat bezel paired with long, muscular, and beautifully sharp straight lugs finished with zero-distortion mirror polishing. This low center-of-gravity architecture allows the mechanical structure to sit entirely flush against the skin, sliding completely weightless under a tailored corporate cuff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClinical Dial Legibility with Practical Calendar Harmony:\u003c\/b\u003e The dial of the **6102-8000** is a study in mid-century luxury and industrial restraint, showcasing a flawless silver sunburst canvas. It is decorated with **hand-applied, multifaceted elongated baton indices** and razor-sharp hands that catch light with beautiful vintage warmth. The framed date aperture at 3 o'clock adds high everyday utility for the corporate workforce, perfectly balanced by the clean typography and the proudly applied Suwa lightning bolt insignia at 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eA Sovereign Milestone of Suwa's Hand-Wound Legacy:\u003c\/b\u003e Manufactured in the milestone year of **1971**, the 6102-8000 remains a highly coveted reference for purist collectors who value the uncompromised beauty of traditional manual mechanics. It represents the perfect historical intersection where rugged daily durability met timeless, sharp Japanese case finishing and high-utility micro-engineering. Built to an uncompromising heirloom standard, it stands as a profound testament to an era when Suwa perfected the luxury hand-wound daily business instrument.\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\/b1232060719.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":52078113915201,"sku":"b1232060719","price":63400.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_62ce9994-f6a7-40e8-aa1c-2ad25d0d6570.jpg?v=1786515401","url":"https:\/\/nonkun.com\/products\/vintage-1971-japan-seiko-skyliner-calendar-6102-8000-21jewels-hand-winding-1","provider":"NONKUN Japan","version":"1.0","type":"link"}