{"id":43804,"date":"2026-10-16T11:38:44","date_gmt":"2026-10-16T03:38:44","guid":{"rendered":"https:\/\/staging3.cortinawatch.com\/blog\/watches\/210-30-42-20-03-003\/"},"modified":"2026-10-16T11:43:35","modified_gmt":"2026-10-16T03:43:35","slug":"210-30-42-20-03-003","status":"publish","type":"watches","link":"https:\/\/www.cortinawatch.com\/en\/omega\/seamaster\/210-30-42-20-03-003\/","title":{"rendered":"210.30.42.20.03.003"},"content":{"rendered":"

This 42 mm Seamaster Diver 300M has a case and bracelet in stainless steel. The ceramic dial, in OMEGA\u2019s own Summer Blue, is PVD-treated and has a gradient finish to reflect the watch\u2019s level of water resistance. It also includes the 300M\u2019s famous wave pattern.<\/p>\n","protected":false},"featured_media":43905,"template":"","brand":[411,1100],"class_list":["post-43804","watches","type-watches","status-publish","has-post-thumbnail","hentry","brand-omega","brand-seamaster"],"acf":[],"yoast_head":"\nView the OMEGA Seamaster 210.30.42.20.03.003 - Cortina Watch<\/title>\n<meta name=\"description\" content=\"Explore the OMEGA Seamaster watch 210.30.42.20.03.003 at Cortina Watch.\" \/>\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.cortinawatch.com\/en\/omega\/seamaster\/210-30-42-20-03-003\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"View the OMEGA Seamaster 210.30.42.20.03.003 - Cortina Watch\" \/>\n<meta property=\"og:description\" content=\"Explore the OMEGA Seamaster watch 210.30.42.20.03.003 at Cortina Watch.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.cortinawatch.com\/en\/omega\/seamaster\/210-30-42-20-03-003\/\" \/>\n<meta property=\"og:site_name\" content=\"Cortina Watch\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/cortinawatch\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-16T03:43:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.cortinawatch.com\/wp-content\/uploads\/2025\/02\/210-30-42-20-03-003_OMEGA_210.30.42.20.03_desktop.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"488\" \/>\n\t<meta property=\"og:image:height\" content=\"610\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"WebPage\",\"ItemPage\"],\"@id\":\"https:\/\/www.cortinawatch.com\/en\/omega\/seamaster\/210-30-42-20-03-003\/\",\"url\":\"https:\/\/www.cortinawatch.com\/en\/omega\/seamaster\/210-30-42-20-03-003\/\",\"name\":\"View the OMEGA Seamaster 210.30.42.20.03.003 - 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