Release rule

When does Umi open reservations?

海味 · Gaienmae (Aoyama), Tokyo · Sushi

How to book

Phone, in Japanese

Phone (or Ikyu/Tabelog request); no published release day, and recent guests report six-month-plus waits.

Phone line: ☎ 03-3401-3368; lunch Tue/Fri–Sun 12:00–14:00, dinner two seatings 17:00 / 20:00, closed Wed

What to expect: Nakazawa-line classic (Umi lineage); ten counter seats, ¥40,000–50,000 plus 10% service. Social posts cite six-month-plus waits; day-before cancellation 50%.

Next release days

Rule not published — we confirm per date

All times are Japan Standard Time (UTC+9).

Request this table →

How do I book Umi from abroad?

Use the channel shown above. If it is a Japanese-language phone line, our Tokyo desk can call for you on the release day and confirm in writing in your language; the booking fee is charged only when the seat is secured.

What time zone is the release time?

All times are Japan Standard Time (UTC+9). Release days are computed from the house's published rule and re-checked monthly.

More release days in Tokyo

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BotanPhone, in JapaneseKanda-Sudacho, Tokyo
FukudayaPhone, in JapaneseKioicho, Tokyo
Dozeu IidayaPhone, in JapaneseNishi-Asakusa, Tokyo
IsegenPhone, in JapaneseKanda-Awajicho, Tokyo
Isehiro KyobashiPhone, in JapaneseKyobashi, Tokyo
Edogawa IshibashiPhone, in JapaneseEdogawabashi, Tokyo
MitakaPhone, in JapaneseNishi-Shinbashi, Tokyo

Tokyo: when the hardest tables open reservations →

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One email at the end of each month: next month's reservation release days for Japan's hardest tables — which phone lines open on the 1st, at what hour — plus what comes into season. No noise; unsubscribe anytime.

Rules are verified against official notices and platform listings and re-checked monthly. Houses change their systems without warning; treat the calendar as a planning tool and let us confirm the specifics for your dates.