{"id":158454,"date":"2026-04-28T16:46:23","date_gmt":"2026-04-28T13:46:23","guid":{"rendered":"https:\/\/sovietwatchstore.com\/?post_type=product&#038;p=158454"},"modified":"2026-04-26T11:28:08","modified_gmt":"2026-04-26T08:28:08","slug":"vintage-seiko-5-actus-ss-from-november-1974","status":"publish","type":"product","link":"https:\/\/sovietwatchstore.com\/index.php\/product\/vintage-seiko-5-actus-ss-from-november-1974\/","title":{"rendered":"Vintage Seiko 5 Actus SS 23 jewel mechanical watch, from November 1974"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]SEIKO vintage mechanical watch<br \/>\nMADE IN JAPAN<\/p>\n<p>&nbsp;<\/p>\n<p data-start=\"0\" data-end=\"145\"><strong data-start=\"0\" data-end=\"16\">\u201cSeiko\u201d (\u7cbe\u5de5)<\/strong> is a Japanese word meaning <strong data-start=\"44\" data-end=\"113\">\u201cprecision,\u201d \u201cexquisite workmanship,\u201d or \u201crefined craftsmanship.\u201d<\/strong><br data-start=\"113\" data-end=\"116\" \/>It comes from the characters:<\/p>\n<ul data-start=\"147\" data-end=\"223\">\n<li data-start=\"147\" data-end=\"187\">\n<p data-start=\"149\" data-end=\"187\"><strong data-start=\"149\" data-end=\"160\">\u7cbe (sei)<\/strong> \u2013 fine, precise, refined<\/p>\n<\/li>\n<li data-start=\"188\" data-end=\"223\">\n<p data-start=\"190\" data-end=\"223\"><strong data-start=\"190\" data-end=\"200\">\u5de5 (ko)<\/strong> \u2013 craft, workmanship<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"225\" data-end=\"411\">Originally, Seiko\u2019s watchmaking division was called <strong data-start=\"277\" data-end=\"295\">Seikosha (\u7cbe\u5de5\u820e)<\/strong>, meaning <strong data-start=\"305\" data-end=\"330\">\u201cHouse of Precision.\u201d<\/strong><br data-start=\"330\" data-end=\"333\" \/>In 1924 the company shortened the name to <strong data-start=\"375\" data-end=\"384\">Seiko<\/strong>, keeping the core meaning.<\/p>\n<p data-start=\"413\" data-end=\"568\" data-is-last-node=\"\" data-is-only-node=\"\">So the brand name literally ties directly to the idea of <strong data-start=\"470\" data-end=\"495\">precision engineering<\/strong>\u2014which is exactly what the company wanted to be known for in its watches.<\/p>\n<p>[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<\/p>\n<p data-start=\"136\" data-end=\"180\">\ud83d\udd70\ufe0f<strong>The Seiko Actus Line: A Legacy of JDM Quality<br \/>\n<\/strong><\/p>\n<p data-start=\"136\" data-end=\"180\">The Actus line was a specialized mid-range series produced by Seiko from the late 1960s through the 1970s. While the standard &#8220;Seiko 5&#8221; was marketed globally as a rugged, affordable everyday watch, the Actus was primarily intended for the Japan Domestic Market (JDM), targeting young professionals who desired a blend of style and higher-end features.<br \/>\nThe name &#8220;Actus&#8221; is derived from the Latin word for &#8220;action&#8221; or &#8220;motion,&#8221; reflecting the active lifestyle of the era&#8217;s youth. The line is defined by three distinct characteristics:<\/p>\n<ol>\n<li><strong>The &#8220;SS&#8221; Designation:<\/strong> Most Actus models, including yours, carry the <strong>SS (Second Setting)<\/strong> badge. This refers to the &#8220;hacking&#8221; feature, which stops the seconds hand when the crown is pulled out, allowing for precise synchronization\u2014a feature typically reserved for Seiko\u2019s luxury King Seiko or Grand Seiko lines at the time.<\/li>\n<li><strong>Design Forward:<\/strong> Actus watches often experimented with bold case shapes, faceted crystals, and vibrant sunburst dials that pushed beyond the conservative styling of the standard Seiko 5.<\/li>\n<li><strong>The 5 Attributes:<\/strong> Despite the stylistic upgrades, the Actus remained a &#8220;Seiko 5&#8221; at its core, adhering to the five essential pillars: automatic winding, day\/date display, water resistance, recessed crown at 4 o&#8217;clock, and a durable case\/bracelet.<\/li>\n<\/ol>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<p><strong>Product Description<\/strong><br \/>\nA masterclass in 1970s Japanese engineering, this Seiko 5 Actus SS is a collector-grade example of JDM excellence. Unlike export models, this Japan-market exclusive features the sought-after Kanji\/English day wheel and the high-jewel 6106C movement.<br \/>\nThe &#8220;SS&#8221; (Second Setting) marking on the dial indicates a hacking caliber, allowing you to halt the sweeping seconds hand for atomic-accurate time setting. The 37mm stainless steel case features a sophisticated cushion profile that wears larger than its dimensions suggest, offering a commanding presence on the wrist.<br \/>\nThis piece comes fitted with its original signed Actus bracelet, a rarity in today\u2019s vintage market. The silver sunburst dial catch the light beautifully, shifting from bright chrome to deep metallic grey depending on the angle.<\/p>\n<ul>\n<li><strong>Condition:<\/strong> Fully serviced, movement regulated to within vintage tolerances. Original finish maintained.<\/li>\n<li><strong>Movement:<\/strong> 23-Jewel 6106C Automatic (Hacking)<\/li>\n<li><strong>Dimensions:<\/strong> 37mm diameter | 42mm lug-to-lug | 11mm thickness<\/li>\n<li><strong>Exclusivity:<\/strong> Japan Domestic Market (JDM)<\/li>\n<\/ul>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;-<\/p>\n<p><strong>Technical Specifications<\/strong><\/p>\n<ul>\n<li><strong>Caliber:<\/strong> Seiko 6106C (Automatic, Diashock shock protection)<\/li>\n<li><strong>Jewel Count:<\/strong> 23 Jewels<\/li>\n<li><strong>Vibrations Per Hour:<\/strong> 21,600 bph (\u202d\u202c\u202d\u202c)<\/li>\n<li><strong>Power Reserve:<\/strong> Approximately 46 hours<\/li>\n<li><strong>Mainspring:<\/strong> Diafix lubrication system for extended service intervals<\/li>\n<li><strong>Calendar Mechanism:<\/strong> &#8220;Push-set&#8221; quickset. Pushing the crown in halfway changes the Date; pushing it deeper changes both Day and Date.<\/li>\n<li><strong>Day Wheel:<\/strong> Dual-language (Kanji\/English), indicative of its JDM (Japan Domestic Market) origin.<\/li>\n<li><strong>Case Reference:<\/strong> 8670 (Cushion-lug design with integrated-style bracelet transition)<\/li>\n<li><strong>Case Material:<\/strong> 316L Stainless Steel<\/li>\n<li><strong>Crystal:<\/strong> Mineral Hardlex (proprietary Seiko hardened glass)<\/li>\n<li><strong>Lug Width:<\/strong> 18mm<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Watch went through a complete service by a professional watch tech and keeps good time.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Comes complete with original stainless steel bracelet included*.<\/strong><\/p>\n<p>(*)Note: Stock bracelets are often shortened by previous owners and may not fit you(see bracelet size in the product images). We recommend adding a new Seiko lug width matched leather strap with your order.[\/vc_column_text][vc_single_image image=&#8221;150778&#8243; img_size=&#8221;full&#8221; style=&#8221;vc_box_rounded&#8221; onclick=&#8221;zoom&#8221; css=&#8221;&#8221;][vc_column_text css_animation=&#8221;bounceInLeft&#8221; css=&#8221;&#8221;]This watch ships from \ud83c\uddfa\ud83c\udde6Ukraine with tracking number[\/vc_column_text][vc_single_image image=&#8221;150769&#8243; img_size=&#8221;full&#8221; style=&#8221;vc_box_rounded&#8221; onclick=&#8221;zoom&#8221; css=&#8221;&#8221;][vc_single_image image=&#8221;150767&#8243; img_size=&#8221;full&#8221; style=&#8221;vc_box_rounded&#8221; onclick=&#8221;zoom&#8221; css=&#8221;&#8221;][vc_single_image image=&#8221;150766&#8243; img_size=&#8221;full&#8221; style=&#8221;vc_box_rounded&#8221; onclick=&#8221;zoom&#8221; css=&#8221;&#8221;][vc_column_text css=&#8221;&#8221;]Modes of payment:<\/p>\n<ul>\n<li>PayPal<\/li>\n<li>Credit Cards (VISA, MasterCard, American Express, Discover)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>We guarantee that the item in this ad looks and works as advertised and offer money back guarantee on this.[\/vc_column_text][vc_single_image image=&#8221;150774&#8243; img_size=&#8221;full&#8221; style=&#8221;vc_box_rounded&#8221; onclick=&#8221;zoom&#8221; css=&#8221;&#8221;][vc_icon icon_fontawesome=&#8221;fa fa-star-o&#8221; color=&#8221;juicy_pink&#8221; align=&#8221;center&#8221;][vc_gallery interval=&#8221;3&#8243; images=&#8221;146289,146288,146292,146291,146290,146287,146286,146285,146284,146318,146293&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221; title=&#8221;Seiko lug width matched leather straps: 18mm -19mm &#8211; 20mm&#8221;][vc_single_image image=&#8221;146317&#8243; img_size=&#8221;full&#8221; style=&#8221;vc_box_rounded&#8221; css=&#8221;&#8221;][vc_text_separator title=&#8221;About the watch factory&#8221;][vc_single_image image=&#8221;146306&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;2\/3&#8243;][vc_column_text css=&#8221;&#8221;]<b>Seiko Group Corporation<\/b>\u00a0(<span title=\"Japanese-language text\"><span lang=\"ja\">\u30bb\u30a4\u30b3\u30fc\u30b0\u30eb\u30fc\u30d7\u682a\u5f0f\u4f1a\u793e<\/span><\/span>,\u00a0<span title=\"Hepburn transliteration\"><i lang=\"ja-Latn\">Seik\u014d Gur\u016bpu kabushiki gaisha<\/i><\/span>), commonly known as\u00a0<b>Seiko,<\/b>\u00a0is a Japanese maker of watches, clocks, electronic devices, and\u00a0semiconductors. Founded in 1881 by\u00a0<a title=\"Kintar\u014d Hattori\" href=\"https:\/\/en.wikipedia.org\/wiki\/Kintar%C5%8D_Hattori\">Kintar\u014d Hattori<\/a>\u00a0in\u00a0Tokyo, Seiko introduced the world&#8217;s first commercial\u00a0<a title=\"Quartz clock\" href=\"https:\/\/sovietwatchstore.com\/index.php\/product-category\/wrist-watches\/quartz-watches\/\">quartz wristwatch<\/a>\u00a0in 1969.<sup id=\"cite_ref-ebner_6-0\" class=\"reference\"><\/sup><sup id=\"cite_ref-seikow_7-0\" class=\"reference\"><\/sup><\/p>\n<p>Seiko is widely known for its wristwatches.<sup id=\"cite_ref-ft.com_8-0\" class=\"reference\"><\/sup>\u00a0Seiko and\u00a0Rolex\u00a0are the only two\u00a0watch\u00a0companies considered to be\u00a0<a title=\"Vertical integration\" href=\"https:\/\/en.wikipedia.org\/wiki\/Vertical_integration\">vertically integrated<\/a>. <sup id=\"cite_ref-9\" class=\"reference\"><\/sup>Seiko is able to design and develop all the components of a watch, as well as assemble, adjust, inspect and ship them in-house. Seiko&#8217;s\u00a0mechanical watches\u00a0consist of approximately 200 parts, and the company has the technology and production facilities to design and manufacture all of these parts internally.<sup id=\"cite_ref-10\" class=\"reference\"><\/sup><\/p>\n<p data-start=\"113\" data-end=\"806\">Seiko offers one of the widest ranges of watch technologies in the world\u2014<strong data-start=\"186\" data-end=\"242\">quartz, kinetic, solar, mechanical, and Spring Drive<\/strong>\u2014spanning everything from affordable everyday pieces to six-figure haute horlogerie. Over the decades it has launched multiple global brands, including <strong data-start=\"394\" data-end=\"421\">Lorus, Pulsar, and Alba<\/strong>, while elevating its prestige through innovations like <strong data-start=\"477\" data-end=\"493\">Spring Drive<\/strong>, which helped push Seiko into higher-end territory. In the 2010s, <strong data-start=\"560\" data-end=\"586\">Grand Seiko and Credor<\/strong> were separated into fully independent luxury brands, while Seiko\u2019s own global lineup now includes <strong data-start=\"685\" data-end=\"758\">Grand Seiko, King Seiko, Prospex, Astron, Presage, and Seiko 5 Sports<\/strong>, with Credor remaining primarily Japan-focused.<\/p>\n<p data-start=\"808\" data-end=\"1471\">Among Seiko\u2019s key lines, <strong data-start=\"833\" data-end=\"844\">Seiko 5<\/strong> (born in 1963) is the gateway mechanical series known for durability and value; <strong data-start=\"925\" data-end=\"939\">Lord Matic<\/strong> defined 1970s style with faceted crystals and colorful dials; <strong data-start=\"1002\" data-end=\"1012\">Astron<\/strong> remains Seiko\u2019s flagship GPS-solar tech line; <strong data-start=\"1059\" data-end=\"1070\">Presage<\/strong> focuses on traditional mechanical craftsmanship with enamel and urushi dials; and <strong data-start=\"1153\" data-end=\"1164\">Prospex<\/strong> delivers professional-grade dive, field, and pilot watches often embraced by enthusiasts. At the top end, <strong data-start=\"1271\" data-end=\"1286\">Grand Seiko<\/strong> emphasizes precision, Zaratsu polished design, and movements like Spring Drive, while <strong data-start=\"1373\" data-end=\"1387\">King Seiko<\/strong>\u2014revived in the 2020s\u2014brings back sharp, elegant 1960s styling with modern calibres.<\/p>\n<p data-start=\"1473\" data-end=\"1855\" data-is-last-node=\"\" data-is-only-node=\"\">Finally, <strong data-start=\"1482\" data-end=\"1492\">Credor<\/strong> represents Seiko\u2019s pinnacle of artisanal watchmaking, producing low-volume pieces in precious metals and showcasing Japanese decorative arts and haute complications from the Micro Artist Studio. Beyond watches, Seiko has also produced various electronic devices and, historically, jewelry and eyewear\u2014though those divisions have since shifted to other companies.<\/p>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;146271&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221;][vc_single_image image=&#8221;146270&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row][vc_column][vc_masonry_media_grid css=&#8221;&#8221; grid_id=&#8221;vc_gid:1777192020402-8cfbe69d-7d02-8&#8243; include=&#8221;146307,146308,146314,146312,146311,146309,146313,146310,146316,146315&#8243;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Vintage 1974 Seiko 5 Actus SS Ref. 6106-8670 (JDM) mechanical watch<\/p>\n<p>MADE IN JAPAN!<\/p>\n<p>This watch ships from \ud83c\uddfa\ud83c\udde6Ukraine with tracking number<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":150772,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[566],"product_cat":[544,546,21],"product_tag":[696,189,839,847,845,164,618,818,840,842,808,800,841,625,813,48,688,258,802,844,838,809,807,821,846,604,593,815,610,843,801,798],"class_list":["post-158454","product","type-product","status-publish","has-post-thumbnail","product_brand-seiko","product_cat-duty-free-but-with-more-kgb-surveillance","product_cat-seiko","product_cat-wrist-watches","product_tag-1970s-watch","product_tag-23-jewels","product_tag-6106-8670","product_tag-6106c-movement","product_tag-automatic-vintage-watch","product_tag-automatic-watch","product_tag-collectible-seiko","product_tag-collectible-seiko-5","product_tag-hacking-movement","product_tag-hacking-seconds","product_tag-horology-gift","product_tag-japanese-automatic-watch","product_tag-japanese-watches","product_tag-jdm-seiko","product_tag-kanji-day-wheel","product_tag-mechanical-watch","product_tag-mens-vintage-watch","product_tag-pre-owned-watch","product_tag-rare-seiko-dial","product_tag-seiko-23-jewels","product_tag-seiko-5-actus","product_tag-seiko-7019-6020","product_tag-seiko-day-date-automatic","product_tag-seiko-horology","product_tag-seiko-ss","product_tag-silver-sunburst-dial","product_tag-suwa-seikosha","product_tag-vintage-automatic-watch","product_tag-vintage-seiko","product_tag-vintage-seiko-1974","product_tag-vintage-seiko-collector","product_tag-waterproof-seiko-proof","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"exclude_global_add_ons":true,"addons":[{"name":"Add Seiko lug width matched leather straps with 20% off:","type":"multiple_choice","position":0,"required":false,"title_format":"heading","default":"0","description_enable":false,"description":"","placeholder_enable":false,"placeholder":"","display":"images","restrictions_type":"any_text","adjust_price":false,"price":"","price_type":"flat_fee","restrictions":false,"min":"0","max":"0","options":[{"label":"leather strap for Seiko - 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