Breguet 5817ST Marine Big Date SS Black Dial

The Breguet Marine Big Date reference 5817ST/92/5V8 is a superb fusion of classical Breguet heritage and modern marine-inspired sportiness. Housed in a 39 mm stainless steel case with the signature fluted caseband and sapphire display back, this model showcases a striking black guilloche center dial framed by a silvered chapter ring and Roman numerals, with a large date aperture at 6 o’clock. It is powered by the in‑house automatic caliber 517GG, delivering a generous 65‑hour power reserve, 35 jewels, and a refined 4 Hz beat rate. Water‑resistant to 100 meters, the watch balances elegance and practicality, while the black rubber strap with deployant clasp adds a contemporary, sporty touch. First introduced around 2008–2009, this reference has since become a sought‑after discontinued piece, prized for its exquisite hand‑engraving, technical substance, and the rarity of its execution. Collectors value the 517GG movement not only for its performance but also for its high‑level finishing, including guilloche rotor and Geneva‑striped bridges. This Marine Big Date stands out as a refined everyday luxury watch that embodies Breguet’s historic craftsmanship in a modern, wearable form. Like New with Breguet box and papers dated 2023.