The Project X Submariner with a recurring influence from the legendary Royal Marines' SBS. Limited to just 28 numbered examples per design, each case back of the ‘STEALTH’ series will feature a variation on the SBS ‘Frog, Paddle and Parachute’ Insignia and the motto ‘By Strength & Guile’. Better than the Pro-Hunter MILSUB version in my opinion. The one and only SBS 5517 stays unbeatable of course.