On the difficulties of case design

More often than not, the first thing we notice about a watch is its case Put simply, a watch case is a small object that must fit into the few centimetres of diameter, length and width of wrist space The real challenge lies in making a watch case that is easy and comfortable to wear.

These are the case lugs and they play a more important part than we perhaps give them credit for A watch case is also a container for a movement that it must protect, against humidity and dust in particular As should now be clear, case designers are forced to work within considerable constraints.

Case designers are more likely to be asked to build on an existing concept than create something completely new. . Source