Sun Flame SE43-MBL Waterproof 10ATM Leather Strap Stylish Blue Dial Elegant DesignProduct Highlights SEALANE means a route for safe navigation. In the Age of Discovery, aiming for unknown continents across the vast oceans that cover 70% of the Earth, watches have greatly contributed to safe navigation. During the day, the position of the sun, and at night, the position of the stars were measured to confirm time and location, making the compass indispensable. At the same time, after Galileo Galilei discovered the isochronism of the