Tudor 25707B/21 Pelagos FXD Titanium Blue Dial

The Tudor Pelagos FXD “Marine Nationale” reference 25707B/21, introduced in 2021, is a purpose-built dive instrument born from Tudor’s historic collaboration with the French Navy’s combat swimmer unit. Its robust 42 mm titanium monobloc case features fixed strap bars for enhanced structural integrity and a satin-brushed finish that underscores its utilitarian design. Beneath the matte navy blue dial with iconic Snowflake hands lies the in‑house Manufacture Calibre MT5602, a COSC-certified automatic movement delivering 70 hours of power reserve, a variable inertia balance, and a silicon hairspring. The bidirectional bezel with a sand‑blasted blue ceramic insert and 60-minute retrograde graduation is optimized for underwater navigation, not ISO‑compliant diving, reflecting its specialized mission profile. With a solid steel caseback engraved “M.N.21” and the Marine Nationale emblem, this watch carries both functional gravitas and historical resonance. Its 200 m water resistance and highly legible Super‑LumiNova markers ensure reliability in low‑light environments. As a non‑limited yet short‑production model, it holds strong collector appeal as a modern military‑spec tool watch rooted in Tudor’s heritage. Like New with Tudor box, additional Tudor strap and papers dated 2021.