How to book Watabe

Phone in Japan

03-3812-7448

From abroad

+81 3-3812-7448

Reservations

Bookings accepted (予約可)

Tabelog score

4.07 from 883 reviews

Spend per person

¥6,000 to ¥8,000 at lunch and ¥8,000 to ¥10,000 at dinner

Seats

24 seats in three rooms

Open

Monday, Tuesday, Friday, Saturday and Sunday, 11:30 to 14:30 and 17:00 to 21:00. Last orders are 13:30 and 20:00

Closed

Wednesdays and Thursdays

Payment

Cards accepted (Visa, Mastercard, JCB, American Express, Diners) and PayPay

Getting there

1 minute on foot from exit A5 of Kasuga station, 3 from Korakuen

Address, for a taxi or a map search: 東京都文京区小石川1-9-14 アトラスタワー小石川1F

Can you book Watabe online?

The Tabelog listing itself shows only the phone number. One reviewer mentions that the restaurant also takes bookings online, so check its own website too.

Tabelog itself shows no booking calendar for Watabe. If that other route does not work for you from abroad, our guide to booking without a Japanese phone number covers the options.

When to call Watabe

The listing gives these hours: Monday, Tuesday, Friday, Saturday and Sunday, 11:30 to 14:30 and 17:00 to 21:00. Last orders are 13:30 and 20:00. Small kitchens rarely pick up while they are cooking, so call outside service, on a day the restaurant is open. Japan is nine hours ahead of UTC all year. The call-time checker shows the time there right now.

From outside Japan, dial +81 3-3812-7448. Inside Japan, dial 03-3812-7448.

What the staff will ask

A booking call in Japan follows the same short script almost everywhere. Have these ready before you dial:

• The date and time, plus a second option in case the first is taken.
• The number of people.
• Your name, said slowly. They will write it down in katakana.
• A phone number where they can reach you. A hotel number usually works if you have no Japanese one.
• Allergies or foods you can't eat, said at booking and not at the table.

At Watabe in particular:

• Your eel order, if you are short on time. The restaurant says the eel takes a while, and suggests ordering it when you book.
• Whether children are coming. They ask families to phone ahead.

The Japanese for each line is in our phrases guide, and the phrase builder writes the script for your date and party size.

Conditions to know before you book

• Reservations are accepted by phone.
• The restaurant lists ¥6,000 to ¥8,000 at lunch and ¥8,000 to ¥10,000 at dinner. Reviewers on Tabelog report spending ¥10,000 to ¥15,000 per person, so budget for the higher figure.
• Cards accepted (Visa, Mastercard, JCB, American Express, Diners) and PayPay.
• Closed: Wednesdays and Thursdays.
• Children are welcome, including babies.
• A starter of about ¥600 is charged at dinner to guests who order alcohol.
• The listing shows an English menu and English-speaking staff.

These come from the listing as it stood on 13 October 2026. Prices, hours and closing days change, so open the listing before you plan a day around it. Whatever the terms, keep the booking or cancel early: see how cancellation fees work in Japan.

Let Moshicall make the call

If the language, the time difference or the lack of a Japanese number gets in the way, we can phone Watabe for you. The button below opens our booking form with the restaurant's number already filled in. Add your date, time and party size. Our AI calls in Japanese, says at the start that it is an AI calling for a guest from overseas, and emails you what the restaurant said.

It costs ¥1,000 per guest, with a minimum of ¥2,000, and you are charged only if the restaurant confirms the table. If they are full, closed, don't answer or ask us to book another way, you pay nothing.