" Initially, These wristwatches had been a single-off or custom creations That usually appeared quite a bit just like the pocket watches from which they progressed. But shortly, wristwatches took by themselves aesthetic, with their own personal technological innovations to unravel new challenges presented by wrist-borne timekeepers. Hublot’s Distinctive edition https://www.watchesworld.com/a-history-of-watch-reference-numbers/