The sashimi here is incredibly fresh, especially the tuna—it’s absolutely amazing! The fat is just right and it melts in your mouth. 😍
The portions are generous and the prices are really reasonable, so the value is great. Both the sushi and rice bowls are top-notch, and even the miso soup is packed with ingredients.

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Maguro Tonya Ichimon Isezaki Main Branch
A popular conveyor-belt sushi restaurant offering excellent value, known for serving sushi made with the finest ingredients from Gunma - a land blessed with rich natural bounty.
Located in Gunma Prefecture, Maguro Tonya Ichimon Isezaki Main Branch is the flagship restaurant of a popular conveyor-belt sushi chain that operates four locations under the concept of “Serving Gunma on sushi.” The restaurant is known for its dedication to freshness and quality, offering premium seafood and sushi at an exceptional value.
Each day, professional buyers carefully source fresh fish from markets and fishing ports across Japan, including Hokuriku and other regions. In addition to locally sourced ingredients from Gunma, the restaurant proudly offers a wide selection of seafood and produce from around the country. Its specialty, tuna, is procured in large quantities directly from suppliers, ensuring both outstanding quality and affordability.
Ichimon also places a strong focus on local ingredients. Guests can enjoy sushi made with Akagi beef and Ginhikari salmon-a premium variety raised in Gunma’s clear streams-showcasing the area’s rich natural bounty.
Recommended dishes include the “Kyūdaime Tsurumau Maguro Moriawase,” a signature five-piece tuna platter; the “Gunma wo Nigiru Kizuna Moriawase,” featuring five local specialties; the “Ichimon Roll,” made with Gunma quail eggs; and the “Black Diamond Natto Roll,” using rare large black soybeans. With seasonal menus that change regularly, it’s a place that keeps guests coming back for more.
Highlights
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The main branch of “Maguro Tonya Ichimon,” a sushi chain with four locations across Gunma Prefecture.
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Serves fresh, high-quality seafood and sushi with an emphasis on craftsmanship and taste.
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Offers a wide selection of fish and produce sourced not only from Gunma but also from Hokuriku and other regions across Japan.
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Features dishes that showcase Gunma’s natural bounty, including locally raised ingredients.
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Seasonal recommendations are updated regularly, keeping guests coming back for more.
Photos
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Conveniently located along Prefectural Route 24
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Spacious tables for a comfortable dining experience
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Signature five-piece tuna platter: Kyūdaime Tsurumau Maguro Moriawase
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Local specialty set: Gunma wo Nigiru Kizuna Moriawase
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Popular Ichimon Roll made with Gunma quail eggs
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Black Diamond Natto Roll made with rare, large black soybeans
Official FAQs
Frequently Asked Questions have been vetted and answered directly by each listing.
Q
Do you have foreign-language or photo menus? (If so, which languages are supported?)
All of our locations are equipped with multilingual touchscreen ordering systems. Available languages: English, Korean, and Chinese.
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Can I get take-out?
Yes, takeout is available. Orders can be placed by phone, fax, or through our website.
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Is there free Wi-Fi available in the restaurant?
No free Wi-Fi available.
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Is it possible to reserve a seat?
No, reservations are not accepted. Guests are seated on a first-come, first-served basis.
Reviews
Some reviews are AI-translated.
Details
- Name in Japanese
- 群馬を握る、まぐろ問屋 いちもん 伊勢崎 本店
- Postal Code
- 372-0812
- Address
- 3280-2 Tsunatorimachi, Isesaki City, Gunma
- Telephone
- 0270-70-4455
- Closed
- Open every day
- Business Hours
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11:00am - 3:00pm (L.O.2:30pm), 5:00pm - 9:30pm(
L.O. 8:45pm)
Weekends and holidays 11:00am - 9:30pm (L.O.8:45pm) - Budget
- 4,000yen
- Access
- About 9 minutes by car from JR Isesaki Station
- Credit Cards
- Accepted
- Official Website
- Official Website (Japanese)