This 43.5mm timepiece features a stainless steel case with 300 metres water resistance and a domed sapphire crystal with anti-reflective coating. The green dial displays luminous hands and indexes, with a date window at 6 o'clock and a ceramic top ring for the minutes scale. The watch is powered by the Calibre 400 automatic movement, which offers an impressive 120-hour power reserve. It comes mounted on a stainless steel bracelet fitted with Oris's quick-adjust clasp system, enabling adjustment without removing the watch.
The Calibre 400 movement represents Oris's in-house development, designed for reliability and longevity. The combination of robust case construction, substantial power reserve, and practical bracelet adjustment makes this Aquis suited to both daily wear and diving conditions. The ceramic bezel insert resists scratching and fading.
The Oris Aquis Date Calibre 400 43.5mm Automatic Watch is listed on WatchShopper as a 43.5 mm stainless steel automatic watch with a green dial, a date display, sapphire crystal, and 300 m water resistance. It runs on the 400 calibre with a 120-hour power reserve and comes on a stainless steel bracelet. On 18 October 2026 the lowest UK price was £3,350.00 at Beaverbrooks, in stock, with free delivery and 30-day returns. With the voucher code GET50, Beaverbrooks brings it to £3,300.00.
At £3,350 this watch is mid-priced for an automatic watch with a 41–45 mm case: 55% of the 1,027 we track from every brand cost less. 83% of the 65 Oris watches we track cost less than this one. This is the 20th cheapest of the 22 versions of the Aquis we list.
