Tudor Pelagos FXD 42mm 25707B MN21 2021 [Preowned]

Overview 

The Tudor Pelagos FXD reference 25707B is a highly specialized, professional-grade dive watch developed in direct collaboration with the prestigious French Navy's combat swimmers (Marine Nationale). Released at the close of 2021, this model takes a unique, purpose-driven approach to durability, immediately distinguishing itself from standard Pelagos models. The case is constructed from lightweight, robust 42mm titanium, and its standout feature is the integrated fixed (FXD) lugs, which eliminate the risk of spring bar failure—an essential consideration for military divers operating in extreme conditions.

The watch is presented in the signature deep matte blue of the Marine Nationale. The dial is paired with a unique bi-directional rotating bezel that is fully graduated for 120 clicks, specifically optimized for military underwater navigation rather than traditional elapsed-time diving. The prominent Snowflake hands and applied square markers, filled with high-performance Grade X1 Swiss Super-LumiNova, ensure exceptional visibility and legibility in all low-light conditions.

Powering the Pelagos FXD is the Tudor Manufacture Calibre MT5602, a COSC-certified automatic movement. Built for resilience, it features a non-magnetic silicon balance spring and delivers a robust 70-hour power reserve. The watch boasts a 200m water resistance and notably omits the helium escape valve, prioritizing military navigation and shallow-water operational requirements over deep-sea saturation diving.

The Pelagos FXD 25707B holds exceptional significance due to its highly limited initial production batch. The very first watches produced in 2021 are etched with the "MN21" caseback engraving. Given the late-year release and small initial quantity, the MN21 pieces are considered highly collectible and scarce among Tudor enthusiasts, representing the definitive first issue of this unique military collaboration. The watch is supplied with a high-performance single-piece fabric strap and a blue rubber strap, securing a timepiece that is a powerful fusion of military heritage, focused functionality, and modern collectible status.

Specifications

Brand :	Tudor
Model Name :	Pelagos FXD
Reference :	25707B/MN24
Material	Titanium
Movement :	Tudor Calibre MT5602 (COSC)  PR 70 hours
Case Diameter :	42mm
Bracelet / Strap :	Navy blue fabric & rubber strap
Features :	200m depth rating, Fixed Lugs.

 

Condition

Preowned, Excellent Condition, Complete Original Set with Box and Papers. 
Original factory stickers still affixed on both sides of case, and caseback.

Warranty

5 years original manufacturer warranty

 

Further Insight from Our Specialist Team

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