Designed by ALKA in collaboration with a renowned Japanese maker, the Seiren series brings precision, beauty, and practicality to every sharpening session.Each stone measures 180 × 60 mm — large enough for professional use, yet lighter and more portable than traditional full-size whetstones. Perfect for chefs who travel with their tools, or for home enthusiasts who value professional performance without the bulk.Made from premium silicon carbide, these stones offer consistent cutting action, reliable flatness, and smooth feedback at every grit level. Each one comes with a non-slip silicone base for stability and ease of use.
- Seiren Alka Stone Coarse – #240
- For repairing chips, reshaping edges, or establishing a new bevel.
- Seiren Alka Stone Medium – #1000
- The essential sharpening stage for refining and restoring a keen edge.
- Seiren Alka Stone Dual Finish – #3000 / #8000
- Two fine sides for polishing and achieving a razor-sharp mirror finish.
- Seiren Alka Stone Dual Shaping – #240 / #1000
- The versatile combination for field kits or compact professional setups.
Shipping and returns
Shipping across Canada, free over $175 to destinations reachable by ground. Otherwise, shipping is charged at our current rates. Most orders ship the same or next business day.
Free pickup at our Montréal store (6484 Saint-Laurent Blvd.): 2–3 days, and Québec City store (234 Saint-Vallier St. W.): 3–5 days. We’ll contact you as soon as your order is ready for pickup.
Returns and exchanges within 30 days of delivery, for unused items in their original packaging. Return policy