This is a 200mm Gyuto from Sakai Ishito, a brand with roots in Sakai tracing back to 1863. The blade is marked “Extra Quality” and is crafted from molybdenum–vanadium stainless steel, known for durability, stain resistance, and ease of sharpening. With its Western handle and full tang construction, this knife was designed as a robust, practical chef’s tool suitable for both professional and home kitchens.