At 3.2 oz and 150mm, the Seigaiha Petty is the lightest and most precise knife in the Grand Chef Seigaiha lineup - built for the detail work that a gyuto or santoku cannot do as well. Trimming, segmenting citrus, breaking down shallots, peeling, in-hand cutting - tasks where a smaller blade, a pointed tip, and a thin grind matter more than length or weight. Aoki Hamono builds this with the same Bohler N685 stainless steel core and 45-layer Damascus wave construction as the rest of the Seigaiha line, which means the Seigaiha wave motif runs through the blade at a scale that actually shows well on a shorter knife.
The petty format is also where the Vertical Thin Blade Spec grind pays dividends most clearly. A thinner grind on a small blade translates directly into more feedback and more control during fine work - you can feel exactly where the edge is and what it is doing. Bohler N685 at HRC 60 gives this enough edge retention to stay sharp through heavy prep sessions without becoming difficult to touch up on stones. At $205 it is also the most accessible entry point into the Seigaiha line, and for cooks who already have a larger chef knife they are happy with, it is a strong complement or an easy-to-justify addition to the block. Black pakka wood handle, stainless bolster, double bevel grind for right- and left-handed cooks.
Care Instructions: Bohler N685 is a fully stainless steel - hand wash and dry after each use. Avoid the dishwasher. The polished Damascus surface shows water spots readily, so a quick wipe after use keeps it looking its best. Sharpen on quality water stones and strop regularly. Avoid bones, frozen foods, and hard surfaces that could chip the edge at this hardness level.
The petty format is also where the Vertical Thin Blade Spec grind pays dividends most clearly. A thinner grind on a small blade translates directly into more feedback and more control during fine work - you can feel exactly where the edge is and what it is doing. Bohler N685 at HRC 60 gives this enough edge retention to stay sharp through heavy prep sessions without becoming difficult to touch up on stones. At $205 it is also the most accessible entry point into the Seigaiha line, and for cooks who already have a larger chef knife they are happy with, it is a strong complement or an easy-to-justify addition to the block. Black pakka wood handle, stainless bolster, double bevel grind for right- and left-handed cooks.
- Maker: Aoki Hamono
- Brand: Sakai Takayuki
- Line: Grand Chef Seigaiha
- Location: Sakai, Japan
- Construction: Damascus, 45 Layer
- Edge Steel: Bohler N685 Stainless
- Cladding: Stainless Damascus
- HRC: 60 +/- 1
- Edge Grind: Double Bevel
- Handle: Black Pakka Wood
- Bolster: Stainless Steel
- Weight: 3.2 oz (91 g)
- Blade Length: 150 mm
- Total Length: 270 mm
Care Instructions: Bohler N685 is a fully stainless steel - hand wash and dry after each use. Avoid the dishwasher. The polished Damascus surface shows water spots readily, so a quick wipe after use keeps it looking its best. Sharpen on quality water stones and strop regularly. Avoid bones, frozen foods, and hard surfaces that could chip the edge at this hardness level.
