Ginza: Sushi
Kyubei (Ginza: Sushi)
Open 11:30am-2, 5-10pm. Closed Sundays.

Yes, you can pay a lot more for sushi at Michelin multi-starred counters if you want to, but Kyubei offers excellent quality-fish at somewhat more affordable prices, especially at lunchtime, in a much more relaxed setting. (Some of the chefs even speak a bit of English.)

Kyubei were the inventors of gunkan-maki (the wrap-around technique for fish roe and similar sushi). Lunches start at around Y8,200 for a nigiri set menu, or Y22,000 for kaiseki. Dinners start at Y11,000, with a Y33,000 kaiseki sushi menu that's quite a spectacle.

Chuo-ku, Ginza 8-7-6.
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Venue listing from Bento.com5 Star Rating: highly recommended