Oris Aquis Date Calibre 400vsOris Divers Sixty‑Five Date

The Oris Aquis Date Calibre 400 is widely lauded for its exclusive in-house movement, offering a five-day power reserve, 10-year warranty, and 10-year service interval. Reviewers and owners praise its impressive accuracy, with figures ranging from under a second per day to seven seconds fast per day. The watch features a refined case with slimmer lugs and an updated dial for improved ergonomics, a patented quick-change system for straps, and a smooth, precise bezel action. Some find the dial can be shiny with glare from the domed crystal. Overall, owners and reviewers rate the Oris Aquis Date Calibre 400 highly for its significant advancements in mechanical watchmaking and value proposition.

The Oris Divers Sixty-Five Date is praised for its vintage charm, wearable 40mm size, and legible dial, with its dramatically domed sapphire crystal enhancing the dial's appearance and very good lume. The Sellita SW 200-1 based Oris 733 calibre offers a 38-hour power reserve. Some owners feel the watch is overpriced for its 10atm water resistance and suggest higher case and bracelet quality for the price. Overall, owners and reviewers appreciate the Oris Divers Sixty-Five Date for its vintage charm and wearable dimensions, though some question its value proposition relative to its water resistance.