Oceanus occupies a strange spot in Casio's lineup: same radio-solar technology as a G-Shock, but built for a dress watch instead of a tool watch. The Classic Line OCW-T2600 leans fully into that positioning — a 42.8mm titanium carbide-treated case that stays just 10.7mm thick, sapphire crystal with anti-reflective coating, and a dual-dial layout showing two world cities simultaneously.
Underneath the restrained design is the same low-maintenance formula that makes Casio's radio-solar watches easy to live with: automatic time correction from six worldwide stations, solar charging that means no battery changes, and 100m water resistance despite the dress-watch styling. Long-term owners report the radio sync working reliably even from locations well outside Japan's own broadcast towers, which is exactly the point of a global radio network.
