The Phénix Q157 “La Voix du Souvenir” expedition is an endeavor supported by ZRC to locate the lost French submarine Le Phénix, which disappeared off Vietnam in 1939 with 71 crew members on board. This mission honors the crew’s memory and uses modern tools to explore the submarine’s mystery, a project fueled by recently declassified French Navy archives. To commemorate the expedition and ZRC’s 120th anniversary, a special edition of the GF300 diving watch has been launched. The Grands Fond Phenix Limited Edition is limited to just 200 pieces. This model embodies ZRC’s iconic durability and advanced features, enhanced with custom design elements reflecting the Phénix. Its 316L stainless steel case is water-resistant up to 300 meters and features ZRC’s patented ECS and Crown Protection Systems. Luminous SLN Old Radium X1 paint highlights the hands and markers, while a blue bezel insert matches the dial, giving it an elegant yet robust look. The case back features a unique engraving of a phoenix. Powered by the Sellita SW-300 calibre, the GF42168PH offers a 56-hour power reserve with precision adjustments across five positions. It includes premium accessories: a miniature Phénix submarine replica, a watchmaker’s magnifying glass, a tool for changing wristbands, an additional organic leather strap, and Alcantara packaging.