Platinumtech is a platinum-based case alloy that Panerai developed in-house. It is 95 percent platinum, like most watch platinum, but Panerai says it is about 40 percent harder and more scratch-resistant than conventional platinum. That makes platinum, a very precious metal, much more durable for a watch case.
How is it different from ordinary platinum?
Most watch platinum is 950 platinum. That means 95 percent platinum and 5 percent other metals. Platinumtech keeps the same share of platinum. The change lies in the remaining 5 percent, which Panerai uses to improve scratch resistance. Its research unit, the Laboratorio di Idee, reformulated and refined the alloy. The result is harder than ordinary platinum and has better physical properties. Panerai also says it holds its shine better than regular platinum. The alloy is very dense. It weighs about a third more than 18-karat gold.
Why is it hard to finish?
Hardness has a cost in the workshop. Because Platinumtech is harder than ordinary platinum, it is much more difficult to work. It is also much more difficult to polish. For that reason its surfaces have to be polished carefully by hand. This is not general work: it is done by specialists. So the extra hardness that sets the alloy apart also makes each case harder to finish.
Where it comes from
Panerai created the alloy to make platinum much more durable as a case material, and describes it as proprietary. Platinumtech made its debut on the Luminor Marina PAM01116. On that watch the case, bezel, crown and crown guard were all made of the alloy. It was a limited edition, sold with a 70-year warranty. Panerai later used Platinumtech for the Luminor Perpetual Calendar GMT, presented at Watches and Wonders 2025.
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