Release rule
How to Book Nihonryori Seizan: Reservation Release Day, Phone and Rules (2026)
日本料理 晴山 · Mita, Tokyo · Kaiseki · Lunch & dinner
How to book this house
Phone in Japanese (Tue–Fri 15:00–17:00) or Ikyu, where on the 1st of each month the Ikyu-only seats three months ahead open (September opened 1 June). Dinner Tue–Sat, lunch Saturdays only.
- Next release
- November 1, 2026 → February 2027
Dates through January 2027 are already open.
This house books only in the name of the guest who attends. We will ask in your name; if the house declines bookings arranged on a guest's behalf, we will tell you and nothing is charged.
- Lunch / dinner
- Lunch & dinner
Lunch on Sat only
- Phone line
- Tue–Fri 15:00–17:00, +81-3-3451-8320
- The house's cancellation charge
- From 00:00 JST, 2 days before100%
- Same day, with notice100%
- Same day, no notice (no-show)100%
Charged by the house, not by us. A plan's own policy takes precedence.
Source: Ikyu, read 2026-10-04
- If a seat comes back
- We watch this house's own booking page and email anyone following it when dates appear that were not there before. We hold nothing — the seats go first come, first served.
About this house
Regulars fill most of the 26 seats. 100% charge from 2 days before.
Booking details
Exceptions and seasons
Ikyu-exclusive seats open on the 1st of each month for three months ahead; the official site accepts phone, its own mail form and Pocket Concierge only, and refuses all third-party booking services.
Allergies or dietary needs? Make a Japanese dining card →
Next release days
Before you ask us
- Smart casual. Shorts and sandals are refused at the door.
Last verified September 7, 2026 · checked by our desk October 4, 2026
Source for the booking rule: the booking page (restaurant.ikyu.com), read September 7, 2026.
All times are Japan Standard Time (UTC+9).
When does Nihonryori Seizan open its reservation book?
Reservations at Nihonryori Seizan next open on November 1, 2026, for dates in February 2027. Phone in Japanese (Tue–Fri 15:00–17:00) or Ikyu, where on the 1st of each month the Ikyu-only seats three months ahead open (September opened 1 June). Dinner Tue–Sat, lunch Saturdays only. All times are Japan Standard Time (UTC+9).
What does Nihonryori Seizan charge if you cancel?
From 00:00 JST, 2 days before 100% / Same day, with notice 100% / Same day, no notice (no-show) 100%. Charged by the house, not by us. A plan's own policy takes precedence. Source: Ikyu, read 2026-10-04
How do I book Nihonryori Seizan from abroad?
Nihonryori Seizan takes reservations online through Ikyu, which you can use from abroad with your own account and a credit card. If you would rather not, our Tokyo desk can request it for you: ¥12,000 per seat, charged only if the table is secured. A free release-date alert emails you the day before, on the morning of release day (08:00 JST) and about 30 minutes before when the opening time is known; houses that open a little every day come in a weekly summary.
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.
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← All 1,504 houses in the booking calendar
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. For restaurants in our collection, our desk confirms the specifics for your dates when you request.