The clock is silent, as it does not have a 'second' hand. It has a plastic casing, a glass lens and a robust battery-powered mechanism. Classic design, with a lovely Vintage Blue finish. The traditional aluminium hands and calligraphy-style numbering add to the charm. With its simple hanging hook, it's really easy to install. It measures 25.5 cm (10") in diameter. Also available in Antique Cream and French Grey. With a 12 month guarantee. Living Nostalgia Vintage Blue Wall Clock