{"id":35698,"date":"2019-07-19T06:00:20","date_gmt":"2019-07-19T13:00:20","guid":{"rendered":"https:\/\/www.bobswatches.com\/rolex-blog\/?p=35698"},"modified":"2026-03-09T14:44:15","modified_gmt":"2026-03-09T21:44:15","slug":"omega-seamaster-diver-300m-co-axial-chronograph-guide","status":"publish","type":"post","link":"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html","title":{"rendered":"Omega Seamaster Diver 300M Co-Axial Chronograph"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">What do you get when you pair a dive watch with a chronograph? A useful tool watch that you can use on land and in the sea. Meet the <a href=\"https:\/\/www.bobswatches.com\/omega-seamaster-1.html\">OMEGA Seamaster Diver 300m<\/a> Co-Axial Chronograph &#8211; a great all-around sports watch to wear both in and out of water. <\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-35702 size-full\" title=\"Omega Seamaster Diver 300M Co-Axial Chronograph\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s.jpg\" alt=\"Seamaster Diver 300M Co-Axial Chronograph\" width=\"800\" height=\"800\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s.jpg 800w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s-250x250.jpg 250w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s-300x300.jpg 300w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s-768x768.jpg 768w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s-140x140.jpg 140w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016s-380x380.jpg 380w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><b>Design: Omega Seamaster Diver 300M Co-Axial Chronograph<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">The Omega Seamaster Diver 300M Co-Axial Chronograph (ref. 212.30.44.50.01.001) is a proudly robust sports watch that offers plenty of presence on the wrist. There\u2019s the generously sized 44mm stainless steel case that actually wears bigger thanks to the screw-down chronograph pushers flanking the winding crown and the protruding helium escape valve\u00a0 (that also houses an integrated date corrector) at 10 o\u2019clock. As its name suggests, the Diver 300M Chronograph is water resistant to 300 meters (1,000 feet).\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-35700 size-full\" title=\"Omega Seamaster Diver 300M Co-Axial Chronograph\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016.jpg\" alt=\"Seamaster Diver 300M Co-Axial Chronograph\" width=\"400\" height=\"708\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016.jpg 400w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016-169x300.jpg 169w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016-215x380.jpg 215w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">There\u2019s also the striking polished black ceramic unidirectional rotating bezel on top of the case (marked to 60 minutes), in order to keep track of dive times. The sporty black dial features plenty of information but manages to do so in a well-balanced manner. Additionally, the trio of registers (30-minute recorder, 12-hour recorder, and a running seconds indicator) sits at the familiar 3, 6, and 9 o\u2019clock positions. What\u2019s more, tucked into the sub-dial at 6 o\u2019clock is a date window.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">At the center of the dial are the oversized skeletonized sword-shaped hands with luminous tips, along with a red chronograph hand with a luminous dot. There are other red accents on the dial including the 5-minute markers on the minute track, the chronograph recorder hands, and the \u2018Seamaster\u2019 name. For added low-light visibility, the applied hour markers are filled with lume. Sitting on top of the dial is a domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Finishing off the look of the <a href=\"https:\/\/www.bobswatches.com\/omega-1.html\">Omega<\/a> Seamaster Diver 300M Co-Axial Chronograph is a stainless steel bracelet, complete with a folding clasp and wetsuit extension.\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-35699 size-full\" title=\"Omega Seamaster Diver 300M Co-Axial Chronograph\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy.jpg\" alt=\"Seamaster Diver 300M Co-Axial Chronograph\" width=\"800\" height=\"800\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy.jpg 800w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy-250x250.jpg 250w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy-300x300.jpg 300w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy-768x768.jpg 768w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy-140x140.jpg 140w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy-380x380.jpg 380w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><b>Movement: Omega Seamaster Diver 300M Co-Axial Chronograph<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Underneath the stainless steel caseback (furnished with Omega&#8217;s iconic Hippocampus logo) of the Omega Seamaster Diver 300M Co-Axial Chronograph is the Omega Co-Axial Caliber 3300 automatic movement. Offering a 52-hour power reserve, the Caliber 3330 movement &#8211; an officially certified chronometer &#8211; includes a column-wheel mechanism and a Co-Axial escapement. Additionally it is also fitted with a free sprung-balance that has a Si14 silicon hairspring.\u00a0<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-35706 size-full\" title=\"Omega Seamaster Diver 300M Co-Axial Chronograph\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2019-07-17-at-1.18.13-PM.jpg\" alt=\"Seamaster Diver 300M Co-Axial Chronograph\" width=\"2154\" height=\"1673\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2019-07-17-at-1.18.13-PM.jpg 2154w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2019-07-17-at-1.18.13-PM-300x233.jpg 300w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2019-07-17-at-1.18.13-PM-768x597.jpg 768w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2019-07-17-at-1.18.13-PM-1024x795.jpg 1024w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/Screen-Shot-2019-07-17-at-1.18.13-PM-489x380.jpg 489w\" sizes=\"(max-width: 2154px) 100vw, 2154px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">The Caliber 3330 movement allows chronograph timing function for this Omega watch to be accurate to 1\/8 of a second, and can measure a total elapsed time of up to 12 hours. Additionally, rather than being adjusted through the winding crown, the date is set by pushing the corrector button at 10 o\u2019clock, which has been integrated into the knob of the helium escape valve.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are times when you have to choose between wearing a dive watch and a chronograph. However, there\u2019s no need to make that choice with the Seamaster Diver 300M Co-Axial Chronograph since Omega has combined both functionalities in one highly-capable sports watch. A watch that can seamlessly go from timing elapsed events on land to a dive expedition deep underwater, the Seamaster Diver 300M Co-Axial Chronograph is both an exceedingly practical and highly attractive watch to own.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-35701 size-full\" title=\"Omega Seamaster Diver 300M Co-Axial Chronograph\" src=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit.jpg\" alt=\"Seamaster Diver 300M Co-Axial Chronograph\" width=\"800\" height=\"800\" srcset=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit.jpg 800w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit-250x250.jpg 250w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit-300x300.jpg 300w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit-768x768.jpg 768w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit-140x140.jpg 140w, https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/zOmega-Speedmaster-122016w-Edit-380x380.jpg 380w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What do you get when you pair a dive watch with a chronograph? A useful tool watch that you can [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":35699,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ep_exclude_from_search":false,"footnotes":""},"categories":[2362],"tags":[],"ppma_author":[2293],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Omega Seamaster Diver 300M Co-Axial Chronograph - Bob&#039;s Watches<\/title>\n<meta name=\"description\" content=\"Dive watch or chronograph? How about both? Meet the Omega Seamaster Diver 300M Co-Axial Chronograph - a useful tool watch for both in and out of water.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Omega Seamaster Diver 300M Co-Axial Chronograph - Bob&#039;s Watches\" \/>\n<meta property=\"og:description\" content=\"Dive watch or chronograph? How about both? Meet the Omega Seamaster Diver 300M Co-Axial Chronograph - a useful tool watch for both in and out of water.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html\" \/>\n<meta property=\"og:site_name\" content=\"Bob&#039;s Watches\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/bobswatches\" \/>\n<meta property=\"article:published_time\" content=\"2019-07-19T13:00:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-09T21:44:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Celine Simon\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@bobswatches\" \/>\n<meta name=\"twitter:site\" content=\"@bobswatches\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Celine Simon\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html\"},\"author\":{\"name\":\"Celine Simon\",\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/#\/schema\/person\/2f21b51b62b02238b48eb2f2e31a6107\"},\"headline\":\"Omega Seamaster Diver 300M Co-Axial Chronograph\",\"datePublished\":\"2019-07-19T13:00:20+00:00\",\"dateModified\":\"2026-03-09T21:44:15+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html\"},\"wordCount\":532,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy.jpg\",\"articleSection\":[\"Omega\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html\",\"url\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html\",\"name\":\"Omega Seamaster Diver 300M Co-Axial Chronograph - Bob&#039;s Watches\",\"isPartOf\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.bobswatches.com\/rolex-blog\/omega\/omega-seamaster-diver-300m-co-axial-chronograph-guide.html#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.bobswatches.com\/rolex-blog\/wp-content\/uploads\/2019\/07\/z122016p-Copy.jpg\",\"datePublished\":\"2019-07-19T13:00:20+00:00\",\"dateModified\":\"2026-03-09T21:44:15+00:00\",\"description\":\"Dive watch or chronograph? 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