The Tudor Pelagos FXD is a purpose-built dive watch designed in collaboration with the French Navy, embodying ruggedness and functional precision. With its 42mm titanium case, this watch is extremely lightweight and highly resistant to corrosion, making it ideal for professional underwater use. Unlike standard dive watches, the FXD features fixed strap bars (hence the "FXD" designation), ensuring a more secure fit for the included fabric strap. Its unidirectional rotating bezel with a fully graduated 60-minute scale, combined with the matte blue dial and luminescent hands and markers, offers exceptional readability in low-light conditions, a crucial feature for military and deep-sea divers.