Patek Philippe Nautilus Ref. 5711/1A-010 The Patek Philippe Nautilus ref. 5711/1A-010 is the steel Nautilus with the blue dial. Introduced in 2006, thirty years after Gérald Genta's original design, it was discontinued in 2021. The horizontally embossed dial shades from blue to black and carries applied gold hour markers with luminescent coating, framed by the porthole-inspired case and integrated steel bracelet. - Self-winding calibre with date: 324 S C, or 26-330 S C from 2019 - 40 mm steel case, water resistant to 120 metres - Blue, black-gradated dial, horizontally embossed - Integrated steel bracelet with Nautilus fold-over clasp Full set. Maker: Patek Philippe. Reference: 5711/1A-010. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.