The Panerai Radiomir
Panerai Replica in the early twentieth century, they were refining the technologies they could offer in their timepieces. Their primary focus was experimenting with luminous materials to increase the legibility of the dial in any conditions. Eventually, they landed on a combination of zinc sulfide and radium bromide. They called this substance Fake Radiomir Watches, and filed a patent in 1916. Still, it we wouldn’t see the first prototype for a Radiomir watch until two decades later.
The original model featured a number of the characteristics we continue to see in the Radiomir today. It boasted an oversized 47mm case, hand-wound mechanical movement, and water-resistant strap. This spurred them to go back to work on refining the luminous substance. The result of those efforts was the development of a new material they called Panerai Luminor Replica. While this spurred an all-new collection, the updated Radiomir remained in production.