Flying the Flag for Sustainability: Alpina Debuts its First Watch With a Case Crafted from Recycled Steel


On the occasion of the World Oceans Day, Alpina presents the Seastrong Diver 300 Automatic Calanda, its first timepiece to feature a 100% recycled stainless steel case. Manufactured by Thyssen Krupp, this PuReSteel recycled stainless steel is primarily sourced from the maritime shipping industry. In addition, the debutante is fitted with a wristband made from recycled plastic.

As the last part of the model name suggests, this special edition of the new Seastrong Diver 300 Automatic pays tribute to the historic Calanda, the first ship to fly the Swiss flag.

Evocative of the rounded curves of a porthole, the Seastrong Diver 300 Automatic Calanda’s recycled stainless steel 42 mm case is polished with a satin finish. The unidirectional rotating notched bezel is made from traditional stainless steel with a brushed finish and a 60-minute scale. The central hour and minute hands as well as the applied hour markers are coated with a vintage beige luminescent material.

The Seastrong Diver 300 Automatic Calanda is water-resistant up to 300 meters thanks to its full screw-in case back and crown, embellished with the Seastrong collection’s hallmark motif: Alpina’s beloved mountain peaks, layered under a trident in a nod to the watch’s deep-sea personality. The Sellita based AL-525 automatic movement boasts 38 hours of power reserve. Retail is approximately $1,800 when converted to USD.

To learn more, visit Alpina, here.

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  1. David Huntington Huntington

    Like Alpina and the watch looks great but… No screw down case back?

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