Quartz movements and dials having hour hands that rotate once in 24 hours can be found, see http://www.seldecpublishing.co.uk/clocks/ John H. On 12 Nov 2011, at 12:08, Azelio Boriani wrote: > Yes for 12-hour display but here in Europe we usually have 24-hour > displays. Of course analog clocks are always 12-hour.