What is a Pilot Watch?

Are pilot watches only worn by pilots? Is any watch worn by a pilot a pilot watch? The pilot watch is an often confusing moniker for simple and readable watches. They derived their name from WWI pilots who needed to be able to read the time at a moment’s notice, but the term has grown to include a large variety of watches. Common features of pilot watches are simple faces, large numerals, and a marker at 12 o’clock to make orientation simpler. Pilot watches have also adapted to include certain chronographs that would be advantageous for pilots today.