Casio announced the CMK-100 mechanical watch on October 29 in Tokyo, introducing a titanium-cased automatic model with five combinations of dial colors and bands.
The company’s announcement was distributed at 1 a.m. GMT on October 29, corresponding to the evening of October 28 in the United States. Casio said the watch uses a Japanese-made automatic movement and has a 10-bar water-resistance rating.
The titanium case and bezel have a hairline finish. Casio said a matte dial reduces reflected light, while raised hour markers carry multiple layers of phosphorescent paint intended to improve readability in low light. Those are the manufacturer’s design descriptions, rather than findings from independent testing.
The range includes black-dial versions with titanium, nylon or leather bands, a gray-dial version with a nylon band and a brown-dial version with a leather band.
The release did not specify prices, a U.S. sales date or market-by-market availability. It also did not identify the movement’s model or state a power-reserve figure.
Sources Casio Computer — CMK-100 Announcement, October 29, 2026: https://www.prnewswire.co.uk/news-releases/casio-to-release-lightweight-mechanical-watch-with-excellent-readability-302921631.html