There are plenty of different clocks to choose from, have you considered a large digital display instead of a traditional analogue one? Digital clocks can be easier and faster to read for persons with failing eyesight, and also easier for children to learn to read.
There are several things you might want to consider.
1. They are silent. You will get no ticking noise ever, which can be really irritating in analogue clocks. So a digital model may be better suited to places like a study, or entertainment room where you want it to be quiet.
2. Read the time faster. Just like a digital watch, it is quicker to be able to glance at the face and see a number like 6:14am than it is to have to look to the hour, minute and second hand. As I mentioned, children will also find it easier to learn about time telling this way.
3. A cool, sleek modern look. If you live in a new house styled around modern technology a sleek digital display can nicely bridge old to new. The traditional time honoured concept of a wall clock is kept, but boldly redefined in modern form.
4. Slimmer and more space saving than a traditional clock. Less wall space taken up again looks sleek and elegant.
Digital clocks are obviously always electronic, so require batteries to run off. Life cycle of batteries is similar to a conventional clock, about 12-18months between changes.
Choosing a digital clock will be a matter of personal preference entirely, and most people will still opt for an analogue instead. So it is a sure way of personalising your house or room. As with most electronic goods you will find a good deal online at many shops.