They've all got 24 hour analog dials: the hour hand goes round once a day, not twice a day. The minute and second hands operate as usual.
This site is dedicated to the unusual character of the 24 hour analog clock (and watch) face.
This watch from Think the Earth illustrates the logic behind the 24 hour analog clock design: it helps you understand the nature of time more clearly:
The dial consists of a model of the Northern Hemisphere of the Earth, which rotates once a day, just like the hour hands of all the watches and clocks listed on these pages.
Browse this site if you want to see these and other watches and clocks that show all the 24 hours of the day.