{"product_id":"omega-seamaster-aqua-terra-150m-master-chronometer-summer-blue-copy","title":"Omega Speedmaster Triple Date Automatic \"Mark 4.5\" Chronograph","description":"\u003ch3 data-section-id=\"x0rvwv\" data-start=\"145\" data-end=\"209\"\u003eVintage Integrated Bracelet | Day-Date | Excellent Condition\u003c\/h3\u003e\n\u003cp data-start=\"211\" data-end=\"461\"\u003eOffered for sale is an increasingly desirable \u003cstrong\u003eOmega Speedmaster Triple Date Automatic Chronograph\u003c\/strong\u003e, often affectionately referred to by collectors as the \u003cstrong\u003e\"Mark 4.5\" \u003c\/strong\u003edue to its distinctive tonneau-shaped case and unmistakably 1970s \u003cstrong\u003eSpeedmaster\u003c\/strong\u003e styling.\u003c\/p\u003e\n\u003cp data-start=\"463\" data-end=\"716\"\u003eThis reference represents a fascinating chapter in \u003cstrong\u003eSpeedmaster\u003c\/strong\u003e history, combining the iconic chronograph lineage with practical day and date functionality in a bold integrated-bracelet design that feels remarkably current decades after its introduction.\u003c\/p\u003e\n\u003cp data-start=\"718\" data-end=\"941\"\u003eThe black dial remains exceptionally clean and legible, featuring luminous hour markers, contrasting white handset, day\/date display at 3 o'clock, and chronograph functionality powered by \u003cstrong\u003eOmega's\u003c\/strong\u003e trusted automatic movement.\u003c\/p\u003e\n\u003cp data-start=\"943\" data-end=\"1183\"\u003eThe stainless steel case exhibits sharp lines and retains the strong architectural presence that makes these vintage \u003cstrong\u003eSpeedmasters\u003c\/strong\u003e so appealing. The original integrated bracelet completes the period-correct look and wears exceptionally well.\u003c\/p\u003e\n\u003ch3 data-section-id=\"v6ee9q\" data-start=\"1185\" data-end=\"1197\"\u003eIncluded\u003c\/h3\u003e\n\u003cul data-start=\"1198\" data-end=\"1367\"\u003e\n\u003cli data-section-id=\"129gynq\" data-start=\"1198\" data-end=\"1251\" style=\"font-weight: bold;\"\u003e\u003cstrong\u003eOmega Speedmaster Triple Date Automatic Chronograph\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1hm98ic\" data-start=\"1252\" data-end=\"1305\"\u003eVintage \u003cstrong\u003eOmega\u003c\/strong\u003e presentation box (shows age and wear)\u003c\/li\u003e\n\u003cli data-section-id=\"vxn4ml\" data-start=\"1306\" data-end=\"1342\"\u003eOriginal \u003cstrong\u003eOmega\u003c\/strong\u003e integrated bracelet\u003c\/li\u003e\n\u003cli data-section-id=\"hyei40\" data-start=\"1343\" data-end=\"1367\"\u003eWatch only (no papers)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1369\" data-end=\"1387\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1388\" data-end=\"1592\"\u003e\n\u003cli data-section-id=\"1uhtxsk\" data-start=\"1388\" data-end=\"1429\" style=\"font-weight: bold;\"\u003e\u003cstrong\u003eOmega Speedmaster Automatic Chronograph\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-section-id=\"1jtwa8v\" data-start=\"1430\" data-end=\"1452\"\u003eStainless Steel Case\u003c\/li\u003e\n\u003cli data-section-id=\"18uf93j\" data-start=\"1453\" data-end=\"1465\"\u003eBlack Dial\u003c\/li\u003e\n\u003cli data-section-id=\"vfuc7l\" data-start=\"1466\" data-end=\"1488\"\u003eDay and Date Display\u003c\/li\u003e\n\u003cli data-section-id=\"pmi7py\" data-start=\"1489\" data-end=\"1509\"\u003eAutomatic Movement\u003c\/li\u003e\n\u003cli data-section-id=\"1bst569\" data-start=\"1510\" data-end=\"1532\"\u003eChronograph Function\u003c\/li\u003e\n\u003cli data-section-id=\"8d7ycc\" data-start=\"1533\" data-end=\"1551\"\u003eTachymeter Scale\u003c\/li\u003e\n\u003cli data-section-id=\"1iw495g\" data-start=\"1552\" data-end=\"1579\"\u003eIntegrated Omega Bracelet\u003c\/li\u003e\n\u003cli data-section-id=\"jknsmg\" data-start=\"1580\" data-end=\"1592\"\u003eSwiss Made\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1uef3h1\" data-start=\"1594\" data-end=\"1607\"\u003eCondition\u003c\/h3\u003e\n\u003cp data-start=\"1608\" data-end=\"1648\"\u003eExcellent overall condition for its age.\u003c\/p\u003e\n\u003cp data-start=\"1650\" data-end=\"1896\"\u003eThe case retains strong definition with honest signs of careful wear consistent with a vintage \u003cstrong\u003eOmega\u003c\/strong\u003e. Dial and hands present beautifully with excellent legibility. Crystal remains attractive and displays well. Bracelet remains solid and wearable.\u003c\/p\u003e\n\u003cp data-start=\"1898\" data-end=\"1983\"\u003eThe vintage \u003cstrong\u003eOmega\u003c\/strong\u003e presentation box is included but shows noticeable age-related wear.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1n4nqpw\" data-start=\"1985\" data-end=\"2003\"\u003eWhy We Like It\u003c\/h3\u003e\n\u003cp data-start=\"2004\" data-end=\"2291\"\u003eBefore every \u003cstrong\u003eSpeedmaster \u003c\/strong\u003elooked the same, \u003cstrong\u003eOmega\u003c\/strong\u003e experimented with bold case designs that captured the spirit of the era. This \u003cstrong\u003eTriple Date\u003c\/strong\u003e stands out from the crowd while still delivering everything enthusiasts love about vintage \u003cstrong\u003eOmega \u003c\/strong\u003echronographs—character, history, and wrist presence.\u003c\/p\u003e\n\u003cp data-start=\"2293\" data-end=\"2523\"\u003eWith integrated-bracelet sports watches continuing to gain popularity, pieces like this offer collectors an opportunity to own a distinctive vintage \u003cstrong\u003eOmega\u003c\/strong\u003e that remains surprisingly undervalued relative to many modern alternatives.\u003c\/p\u003e\n\u003cp\u003eEvery watch offered by \u003cstrong\u003eRedline Watch Co\u003c\/strong\u003e is carefully inspected, honestly represented, and selected for its character, quality and value. This watch has been carefully inspected and is \u003cstrong\u003eguaranteed authentic\u003c\/strong\u003e. All components, markings, and movement characteristics are consistent with known examples of this model.\u003c\/p\u003e","brand":"Redline Watch Co","offers":[{"title":"Default Title","offer_id":47977579348186,"sku":null,"price":4495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/1499\/5674\/files\/IMG_1034.jpg?v=1781128773","url":"https:\/\/redlinewatchco.com\/products\/omega-seamaster-aqua-terra-150m-master-chronometer-summer-blue-copy","provider":"Redline Watch Co","version":"1.0","type":"link"}