Breguet 5817ST Marine Big Date SS Black Dial

The Breguet Marine Big Date reference 5817ST/92/5V8 epitomizes the fusion of classical horology and nautical-inspired sportiness. Offered in a robust 39 mm stainless steel case with a fluted caseband and a polished fixed bezel, this model was launched in the late 2000s and reflects Breguet’s deep roots as chronometer maker to the French Navy. Its hand‑engraved black guilloché dial, framed by a silvered Roman numeral chapter ring and anchored by pomme hands, delivers both elegance and legibility. At 6 o’clock, the oversized big date window integrates seamlessly into the dial architecture, enhancing functionality without compromising aesthetic balance. Powering the watch is the automatic Caliber 517GG, offering a generous 65‑hour power reserve, visible through a sapphire caseback and showcasing refined Geneva‑striped finishing and a guilloché gold rotor. Water resistant to 100 meters and fitted on a black rubber strap with deployant clasp, the Marine Big Date is equally at home on deck or in the boardroom. Its combination of artisanal dial finishing, technical sophistication, and heritage makes it a standout among collectors seeking a sporty yet refined timepiece with true Breguet pedigree. Like New with Breguet box and papers dated 2020.