The Holy Trinity, also known as The Big Three, is the name given in horology to three of the biggest and oldest watchmakers in the world. The watch brands are Patek Phillipe, Audemars Piguet and Vacheron Constantin, known for their complex and high-end movements.

The Rolex Submariner is the most popular watch on the market. This iconic timepiece has been seen in films, television and worn by some of the world's most well-known celebrities.

Philippe Dufour In 2021, Dufour's Grande et Petite Sonnerie No. 1, the watch he used to launch his brand in 1992, sold at a Phillips auction in Geneva for US$5.21 million (approx. $7.86 million), making it the most expensive timepiece ever sold by an independent watchmaker.

Many of the schools offer scholarships and full-tuition opportunities due to the vast need for professionals in this career field. In terms of annual salary, depending on where in America one locates, a watchmaker can earn between $45,000 and $100,000 a year.