One

Anatomical Design and Versatility for Every Diver The Seac One diving mask builds on the proven success of the Extreme mask – the best-selling model in Seac's history. The anatomical face seal in hypoallergenic liquid silicone provides exceptional adaptability to different facial shapes, ensuring a reliable seal and lasting comfort throughout the dive. Its compact dimensions make it suitable for all underwater activities, from freediving and snorkelling to scuba diving. Construction and Materials The polycarbonate frame delivers structural rigidity and resistance to marine environments, while the silicone strap ensures secure adjustment and long-term durability. Tempered glass lenses provide clear, sharp vision and added safety against impact. The Seac One is also available with prescription optical lenses, covering a dioptre range from -1.0 to -6.0, making it an ideal choice for divers who require vision correction without compromising on practicality. Technical Specifications Component Material / Value Frame Polycarbonate Face seal Hypoallergenic liquid silicone Strap Silicone Lenses Tempered glass Prescription lenses From -1.0 to -6.0 diopters Packaging Rigid transparent case included Storage and Transport The Seac One comes supplied in a rigid transparent case, designed to protect the mask during transport and storage between dives. The hard case shields the lenses from scratches and keeps the silicone face seal in optimal condition over time.