Masamoto Sohonten, one of the best Japanese chef knives in the world.
Masamoto WA Santoku Blue#2 – Serenity Knives Houston
Amazon.com: MASAMOTO SW Japanese Gyuto Chef's Knife with Sheath 8.2" (210mm) Made in JAPAN, Professional Kitchen Chef Knife, Ultra Sharp Swedish Stainless Steel Blade, Wood Wa Handle, Black Ferrule: Home & Kitchen