Some clock parts are digital, suggesting that they make use of 7-segment displays to create 2 figures for the hour, 2 for the mins, as well as sometimes 2 for the secs. Various other clock parts are analog, suggesting that they contain motors, dials, and hands from which traditional-looking wrist watches are built. We intend to assist you decide which way to go.
Digital clock parts tend to be uniform in appearance, the only variety being in terms of design, color, and size. On the various other hand, you could spend all day sorting through the wide variety of analog parts.