The Panerai Submersible QuarantaQuattro represents two firsts for Panerai: The first time eSteel, Panerai’s sustainably-sourced case material has been used in the Submersible line, and the first time Panerai has implemented a highly polished, glossy ceramic in its watches. It comes in three dial colors, with bezels to match: Verde Smeraldo, Grigio Roccia, and Blu Profondo. Panerai introduced eSteel last year in the bezel-less Luminor Marina. With the Submersible line Panerai uses ceramic that’s been polished to a glossy finish for its trademark unidirectional rotating dive bezel. The dial also wears a gradient pattern; light at the top and dark at the bottom. Inside is the ever-present P.900 that’s used in over a dozen Panerai models. A total of 72g of the Submersible QuarantaQuattro is made from recycled materials; that’s 52 percent of 137g, the total weight of the watch. The eSteel used in the Panerai Submersible QuarantaQuattro is part of a larger effort by Panerai to reduce the ecological impact of the watch industry.
When Jon Bues wrote up the Luminor Marina eSteel last year, he noted that “the eSteel logo on the dial is something I would personally forego if it were an option.” Well, the logo didn’t go anywhere this year, but it did change. This time around, Panerai elected to address the bright blue “e” in eSteel, making the logo blend into the dial in a subtle way. I think the new, muted design is a fantastic evolution and will appeal to those who initially were lukewarm on the design. The Panerai Submersible QuarantaQuattro is a great platform for Panerai to expand its range of eSteel models because of its function-forward nature. It serves as an ideal testbed to observe the long-term benefits of eSteel over traditional steel, as well. This new trio is a steady and measured evolution of the Submersible with a sustainability slant, and that’s exactly what consumers and the industry have been asking for.