Breguet 5857ST Marine Dual Time SS Silver Dial

The Breguet 5857ST/12/5ZU Marine Dual Time is a distinguished expression of the Marine collection, marrying technical sophistication with refined aesthetics. Housed in a 42 mm stainless steel case approximately 12.3 mm thick, this model was introduced in the early 2010s and embodies Breguet’s maritime heritage with its hand‑engraved silver guilloche dial and signature coined case band. Powered by the in‑house automatic Caliber 517F, the watch delivers a robust 72‑hour power reserve, silicon escapement components, and a 4 Hz beat rate, underscoring its precision and modern engineering. The dual time complication is elegantly executed with a secondary time display at 6 o’clock, accompanied by a 24‑hour AM/PM indicator, while a discreet date window enhances practicality. Water resistant to 100 meters, this piece balances sporty resilience with dress watch elegance. Collectors value its combination of traditional craftsmanship, advanced materials, and functional complexity, especially given its limited production and the Marine line’s storied legacy. The transparent sapphire caseback offers a view of the finely finished movement, reinforcing its appeal as both a technical instrument and a work of art. Like New with Breguet box.