The watches have an
link Eco-Drive light-powered Cal. B873 movement that will run for six months on a full charge (in power save mode) and have an accuracy of ±15 seconds per month. If you
link want to fight kaiju while saturation diving, the
link watch has 300m of water resistance, luminous hands, a unidirectional bezel, and a screw-down crown. They also still measure the (belovedly) massive 48.2mm by 18.5mm thick.