Pre-Owned Patek Philippe Aquanaut Watches in White Gold

White Gold occupies two clearly differentiated places in the Aquanaut line. The 42.2 mm ref. 5168G, produced from 2017 to 2026 and now discontinued, pairs its white-gold case with either a blue, black-gradient dial or a khaki-green dial. Across the reference's production, the movement transitioned from Cal. 324 S C in earlier pieces to Cal. 26-330 S C in later ones. The ref. 5164G Travel Time was introduced in 2024 and is now discontinued, combining a white-gold case with a blue-gray opaline embossed dial and the collection's travel complication. Buyers deciding between them are choosing between the larger, time-and-date 5168G and the travel-focused 5164G. Each pre-owned watch is authenticated through brand-specific inspection and backed by The 1916 Company's 2-year limited warranty.