The 5168G expands the Aquanaut case to approximately 42.2mm, offering a broader dial surface and stronger visual impact. Crafted in white gold, the case maintains a balanced thickness while delivering substantial wrist weight. The blue embossed dial features luminous numerals and hands, paired with a date display at 3 o’clock. A self-winding mechanical movement ensures accuracy, visible through a sapphire case back that highlights the finishing of internal components. The composite strap, matched to the dial color, enhances both durability and comfort.

This reference is designed for those who prefer a more prominent presence. It preserves the Aquanaut identity while scaling it upward, delivering both sport functionality and a more commanding aesthetic.