Founded in Florence, Panerai was not only a workshop, but also the city's first watchmaking school, helping to perfect and keep the craft alive under one roof. Equated with high quality, the brand supplied precision instruments such as naval combat sights and a radium-based powder that it developed to make the dials of instruments brighter. Panerai's Luminor collection continues to be a popular timepiece that remains radiant through its luminous Arabic numerals and polished steel casing.The brand's close ties with the navy also instigated the creation of the renowned instrument we know today as the Radomir watch, a high functioning timepiece that features manual mechanical movement, wire lungs and is water resistant. To date, Panerai has continued to support nautical activity, partnering with UNESCO's Intergovernmental Oceanographic Commission last year to help promote the sustainable development of ocean sciences. This collaboration yielded The Submersible eLab-ID, a concept watch with the highest percentage of recycle-based material ever.