Tudor Pelagos FXD “Marine Nationale"
The new “Tudor Pelagos FXD” model was developed in conjunction with the French Navy’s combat divers of the Commando Hubert, which are a part of the special forces of the French Navy, also known as the “Marine Nationale”. The “FXD” reference stands for “FIXeD” because the strap bars of the watch were machined into the main body of the titanium case for increased sturdiness and reliability. This latest release effectively revived a relationship Tudor had sustained for several decades since the 1950’s, after supplying dive watches for the Navy. The 42mm case is made of titanium with a solid steel caseback that has been engraved with the “Marine Nationale” emblem of an anchor and its historically-inspired year of production.
Mounted to the case is a titanium bidirectional rotating bezel with a ceramic disc that features a 60-minute retrograde graduation for navigation by successive stages. 
This bezel is new and differs from previous models by being slightly wider, which enhances its usability for divers underwater. It also comes equipped with a screw-down titanium crown adorned with the Tudor shield in relief.
The overall design of this watch is very similar to a vintage Rolex Submariner, while adding some extra embellishments that will clearly appeal to military watch fans, such as the fixed (FXD) bar lugs typically seen on vintage military dive watches. 
Thus forming one single piece with the case, which provides a reinforced connection between the case and strap. Water-resistance on this watch can reach up to 200 meters (660 feet).
Time is exhibited on a navy blue dial with a mixture of squared, rectangular hour index markers, and a singular triangular mark at the 12 o’clock position; while a ring of smaller white printed minute markerings circle around an elevated periphery.
Worth noting is the exclusion of the date aperture, which is the first time a Pelagos has been designed without it since 2012 when it first debuted. Due to this modification the Pelagos FXD version is 1.5mm thinner than the standard model.
Besides that alteration this is overall the same solid, reliable, easily readable layout we’ve grown accustomed to see on this timepiece. The central “snowflake” style hands, hour index markers, and bezel scale have all been fitted with a luminescent coating, for an enhanced legibility. 
Tudor Pelagos FXD
The “Tudor Pelagos FXD” (Ref#: 25707B/21-0001) is powered by an in-house self-winding mechanical movement, caliber MT5602 with 25 jewels and 28,800 vph. It comes equipped with a bi-directional rotor system and variable inertia balance, micro-adjustment by screw. Power reserve on this timepiece can last up to 70 hours, when fully wound.
Mounted to the watch is a navy blue with grey central thread fabric strap, secured to the wrist by a self-gripping (Velcro) hook-and-loop fastening system.
It also comes with an additional blue rubber strap with a woven motif, secured by a titanium buckle. 
For more up to date information visit the official Tudor website here.
