" At The beginning, these wristwatches were just one-off or customized creations that often seemed lots such as pocket watches from which they progressed. But soon, wristwatches took on their own aesthetic, with their own individual specialized innovations to solve new issues offered by wrist-borne timekeepers. In 1892 they introduced https://www.watchesworld.com/a-history-of-watch-reference-numbers/