Details at: http://www.surfboards.com/displayall.php?keyword=sailing&manu_id=63&cat_id=25&utm_source=youtube&utm_medium=video&utm_term=mariner_tide
The Freestyle Mariner Tide watch gives you ocean knowledge in the form of tide direction, time and height for 150 beaches worldwide in addition to sunrise/sunset times. You can also custom program the watch to your location. Beyond just a surf focus, The Mariner Tide is a valuable asset to the boating, sailing, fishing, and diving communities. Featuring a 50mm case best for fitting large wrists, and a comfortable / durable silicone band, the Mariner tide is water resistant to 100 meters and backed by a limited lifetime warranty.