Seiko Nautilus Mod 5711A A Homage to Elegance Discover the Seiko Nautilus Mod with Seiko NH35A automatic movement, a fusion of Gerald Genta's iconic design and Seiko's precision, featuring scratch-resistant sapphire crystal, a seamless integrated bracelet, a transparent caseback revealing the watch's soul, and a high-quality clasp, all available in a palette of exquisite dial colors, ranging from Tiffany blue and gradient blue to classic blue, and offered in timeless stainless steel finishes.