Spyderco Knives Mariner Salt 3-3/4" Serrated H1 Stainless Blade Lockback Folder - SP120S

Part #: SP120S | Spyderco Knives


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SP120S: Mariner Salt - Serrated

Broadening Spyderco's rust-proof Salt Series Line of knives is the reappearance of the classic all-stainless Mariner Model with an H-1 steel blade. The original Mariner set the bar for stainless handled boating and sailing knives in the 80s and 90s. It had (and still does) a Sheepfoot blade, slim profile and shackle key/drying vent but is now available with a 100% rust-free blade, handle and clip.

Salt Series knives feature blades made from H-1 steel. H-1 is a non-rusting alloy comparable in edge retention to established high carbon knife steels. Notably different, it's made using nitrogen rather than carbon. Carbon creates hardness, thus sharpness, but is also the instigator in generating rust when it reacts to chloride. Substituting nitrogen for carbon makes steel harder and edge retentive but nitrogen doesn’t react with chloride - so rust never even starts.

Mariner Salt's Sheepfoot blade is round tipped for cutting in proximity of inflatable watercraft, people and in emergencies where a pointed tip can penetrate or puncture accidentally. Its edge is flat-saber-ground for cutting excellence both in and out of water. The 12mm Spyderco Round Hole eases opening/closing the blade even with gloved, cold or wet hands. Handle drying vent/shackle key lets moisture escape. Ambidextrous tip-up pocket clip and a lanyard hole for an array of carry possibilities.

  • Closed: 4-3/4" (121 mm)
  • Overall: 8-7/16" (214 mm)
  • Blade: 3-3/4" (95 mm)
  • Edge: 3-7/16" (87 mm)
  • Blade Steel: H-1
  • Weight: 4.9 oz. (138 g)
  • Made in Seki-City, Japan
  • Right hand tip-down titanium clip
  • David Boye Dent
  • Lanyard hole for cord attachment in water
  • Shackle key/drying vent
  • 14mm Spyderco Round Hole
  • Hollow-ground blade
The lockback system has been used for many decades. It can usually be found on the knife spine and it provides a strong lockup that will wear well.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Made in Japan
Made in Japan
The exotic steel Capital of the World, Japan produces and innovates some of the best products, from pocket to kitchen knives and everything in between.
Steel Handles
Steel Handles
Stainless Steel knife handles provide strength and durability and look and feel great.


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