SOG Seki, Japan 1990-2000 The Pentagon dagger model S14 boot knife, early all-leather clip-on sheath, NIB

Original price was: $429.99.Current price is: $399.99.

Original SOG Seki Japan S14 Pentagon dagger partially serrated 5-inch blade boot knife, orig early all-leather “clip-on” sheath; 1990-2000 scarce unused NIB w papers. FREE SHIPPING WITHIN THE U.S. FOR THIS ITEM!

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SOG Seki Japan S14 Pentagon dagger partially serrated 5-inch blade boot knife, original early all-leather “clip-on” sheath; 1990-2000 unused NIB with papers.

Excellent quality early SOG The Pentagon model boot knife (SOG designation model number S14). Wickedly sharp dual-edge 5″ blade, non-slip black Kraton handle and original early all-leather sheath with a boot-carry leaf-spring. Made in Seki, Japan circa 1990-2000; rare unused condition in retail box with papers.

This is an excellent quality dagger – the knife is about 9-3/4” / 24.7 cm overall; the blade is about 5″ / 12.7 cm. Early Pentagons had AUS-6 stainless steel alloy blades; later issued came with 440A stainless blades. Non-slip Kraton handle with twin thumb notches provides a secure and very comfortable grip; the handguard is satin-polished stainless steel; all parts are tight with no play. Original factory edge is razor-sharp; the tip is intact. An early production all-leather sheath is also unused; leaf spring is nice and tight.

This early Seki-made SOG Seki Japan S14 Pentagon dagger / fighting knife could be a handy back-up for that “Plan B” scenario, or just a great addition to your collection of vintage SOG fighters. This SOG Seki Japan S14 Pentagon dagger boot knife is in excellent overall shape; you will not be disappointed!

I have a number of vintage American-made collectible knives in the store, please take a look at the store’s American Blades section. Also, please don’t forget to check out our Militaria section for other WW1 and WW2 era combat knives, including German WW1 era trench knives, vintage USAF WW2 Pilot Knives and a couple of nice WW2 era 1st pattern Wilkinson Sword, 2nd pattern and 3rd pattern FS daggers available for sale.

For collectible knives and edged weapons Argocoins accepts payments via credit cards, personal checks drawn from US-based accounts, certified US-based bank checks, and money orders. Take a look at the Payments section within our Terms and Conditions for mailing instructions and additional details. Please email me at if you would like to make a credit card purchase over the phone. Follow me on Facebook @argoman400BC to keep an eye on the latest additions and promotions.


International shipping for this item will be $55 and up to most countries on our “ship-to” list.

Additional information

Weight 2.1 lbs

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