" Initially, These wristwatches were one particular-off or custom creations That usually looked a lot like the pocket watches from which they developed. But shortly, wristwatches took by themselves aesthetic, with their own technological improvements to resolve new difficulties introduced by wrist-borne timekeepers. Gucci started off producing watches in 1997. https://www.watchesworld.com/a-history-of-watch-reference-numbers/