The Seiko Astron SSH153J1 GPS Solar Chronograph delivers cutting-edge precision powered by light and GPS satellite technology. Equipped with the 5X83 calibre, it offers dual-time functionality, world time, a perpetual calendar accurate until 2100, and a 12-hour chronograph. Its 39.5mm titanium case with ceramic bezel combines strength and lightweight comfort, while the silver dial enhances its refined look. With 100M water resistance, sapphire crystal with super-clear coating, and a 6-month power reserve, this Astron is designed for global travelers seeking innovation and style.