A person whose skill is making, repairing, and adjusting watches and clocks. In real life today, most watchmakers spend far more time repairing than making — you take in a watch that has stopped, and they open the back, clean it, replace a tiny part, and set it running again. The making side survives mainly in Switzerland and Japan, and in a small way among independent craftspeople, so calling someone 'a Swiss watchmaker' carries a suggestion of great skill and patience. The word also names a company, not only a person: 'Seiko is a Japanese watchmaker.' That is very common in business news. One more thing worth knowing: because a watch is a small machine where every part must fit exactly, English uses 'watchmaker' as a picture of extreme precision — 'watchmaker's hands', 'done with watchmaker precision'. If you meet the old phrase 'the watchmaker argument', it is a famous idea in philosophy: if you find a watch on the ground, you assume someone made it.