although it wasn't called California yet.The dial had already been used to Rolex, when they made it available to Panerai (it was their product) They "agreed" to produce 1 special model (only for Panerai) with the reference: 3646. Technicallly though, it n...
β Because the patent expired decades ago, the design is now in the public domain, allowing many brands (such as Panerai, Nomos, and various microbrands) to produce watches with this style. β Itβs not my takes Itβs fact Error proof dial patent long expired...