Breguet 5817ST Marine Big Date SS Blue Dial

The Breguet Marine Big Date reference 5817ST/Y2/5V8 is a refined expression of maritime elegance and haute horlogerie. Encased in a 39 mm polished stainless steel case with Breguet’s signature coined-edge fluted sides and a fixed bezel, this model houses the in‑house automatic Calibre 517GG with a 65‑hour power reserve and large date display at 6 o’clock. The blue engine‑turned solid gold dial, framed by a silvered chapter ring, features heat‑blued Roman numerals and luminous Breguet open‑tipped hands, marrying legibility with artisanal craftsmanship. The screw‑down crown and sapphire caseback underscore its 100 m water resistance, making it both elegant and practical. Introduced in the 2010s and now discontinued, this piece captures the heritage of Breguet’s naval chronometers with its fine finishing—anglage, Geneva stripes, and a guilloché rotor echoing the dial. Collectors prize its combination of technical refinement, aesthetic depth, and rarity within the Marine line. Like New with European Watch Company pouch.