Editorial
The Pelagos FXD (ref. M25707B-0001) is the fixed-bar-lug Pelagos, 42mm titanium, the in-house MT5602 (no-date variant of the MT5612), and a case design developed with the Marine Nationale French combat-swimmer unit. The 'FXD' refers to the fixed strap-bars: no quick-release, no spring bars, just permanently-attached bars sized for the issued Marine Nationale strap.
It is the most-tool-watch dive watch in Tudor's modern catalog.
Tudor announced the Pelagos FXD in 2021 as a Marine Nationale collaboration, a navy-blue-dialed titanium dive watch with fixed strap-bars (a design inherited from the 1970s Tudor 7016 'Marine Nationale' issued to the same unit). The MT5602 caliber is the chronometer-certified in-house Tudor movement without the date complication, a 70-hour reserve, free-sprung balance, silicon hairspring. The bezel is bidirectional (a navigation tool, not a dive-time bezel, significant because the FXD is designed for amphibious-navigation work, not recreational diving).
A black-dialed 'Pelagos FXD Chrono' followed; a 2023 'Pelagos FXD Alinghi' edition added a red bezel.
Common things to check: titanium case finishing (Tudor's titanium is unforgiving of polishing, most professional refinishing services will not touch a titanium FXD case, so original-finish examples are the canonical buy and scratched cases should be priced as condition-relevant rather than restorable); fixed strap-bars (the FXD ships with a Marine Nationale fabric strap and a rubber strap, verify both are included; aftermarket bracelets do not fit the FXD without modification, and the watch's design intent is the fabric or rubber strap); bidirectional bezel (correct on the FXD, it's a navigation bezel, not a dive-time bezel; if the bezel is unidirectional, it has been service-replaced incorrectly); MT5602 (in-house Tudor caliber, robust, no date complication); the watch is 42mm and 12.75mm thick, wears smaller than the original 42mm Pelagos because of the fixed-bar lug design.
