{"product_id":"vintage-1962-japan-seiko-cronos-j13046-21jewels-hand-winding","title":"Vintage 1962 JAPAN SEIKO CRONOS J13046 21Jewels Hand-winding.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1962 JAPAN SEIKO CRONOS J13046 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\u003eCRONOS J13046 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 : CRONOS.\u003c\/li\u003e\n\u003cli\u003eCaliber number : 54A.\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 : 1958'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 : 251J272.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN CJ13H265E.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 35.2mm.\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\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 Sovereign Peak of Daini's Hand-Wound Precision (1962):\u003c\/b\u003e Manufactured in **1962**—during the zenith of Daini Seikosha's manual-wind development—the **Seiko Cronos** reference **J13046** represents one of the most historically significant models produced by Daini. Originally launched in 1958 to challenge Suwa's Marvel line, the Cronos platform laid the direct mechanical foundation for the birth of King Seiko and Daini's legendary high-beat watchmaking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe High-Grade 21-Jewel Daini Cronos Engine:\u003c\/b\u003e Powering this historic dress watch is the over-engineered **21-jewel Caliber 54** movement (Cronos base architecture), operating at a classic frequency of **18,000 vibrations per hour (vph)**. Outfitted with an elevated **21-jewel specification**, this hand-wound caliber utilized an ultra-slim mainplate design, Seiko's proprietary **Diashock** anti-shock protection, and a highly refined train wheel setup engineered for superior accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"J13046\"\" Water 50 Proof Case Geometry:\u003c\/b\u003e Sourced in a solid stainless steel case, the reference **J13046** is globally distinguished by its rare **\"\"Water 50 Proof\"\"** heavy-duty case construction—an early precursor to modern water resistance ratings. Featuring long, sweeping lugs with razor-sharp polished bevels and a beefy screw-down or reinforced snap-back, the case offers a commanding, low-profile presence on the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eImmaculate Time-Only Dial Harmony and Script Typography:\u003c\/b\u003e The dial of the **J13046** displays early-1960s visual restraint, set against a radiant silver sunburst canvas set with **hand-applied, multifaceted rectangular hour indices** and sharp dauphine hands. Free from calendar aperture clutter, the dial features the stylized flowing script **\"\"Seiko Cronos\"\"** logo paired with the bold, sought-after **\"\"WATER 50 PROOF\"\"** and **\"\"Diashock 21 Jewels\"\"** typography above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Essential Pre-1964 Cornerstone of Daini's King Seiko Lineage:\u003c\/b\u003e Produced during the foundational golden era of Japanese manual-wind watchmaking in **1962**, the J13046 21-jewel Seiko Cronos Water 50 Proof stands as a highly coveted, investment-grade cornerstone reference. It captures the vital historical lineage that directly enabled Daini Seikosha to develop the inaugural 44KS King Seiko series shortly thereafter.\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\/m1239040859.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":52219401732417,"sku":"m1239040859","price":53500.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_c7962258-d1c9-41a4-8e40-a2ee1acc1805.jpg?v=1789436012","url":"https:\/\/nonkun.com\/products\/vintage-1962-japan-seiko-cronos-j13046-21jewels-hand-winding","provider":"NONKUN Japan","version":"1.0","type":"link"}