Sezon Museum of Modern Art was established in Takanawa, Tokyo in 1962. Since its move to Karuizawa, Nagano in 1981, the museum has built up an international collection of 20th century art.　It focuses on three areas as follows:
1. Works by modern masters

2. A selection of contemporary art from abroad
3. Recent Japanese artists
The Museum currently houses over 600 works by 120 artists such as Kandinsky, Klee, Mark Rothko, Jackson Pollock, Abakanowicz, Kiefer, Clemente, Hisao Domoto, Keiji Usami, Shusaku Arakawa and Kazumi Nakamura.
Architecture: Designed by Kiyonori Kikutake
Garden: Designed by Isamu Wakabayashi
Gross area : 27,732 square meters
Floor area:2,078 square meters
Open: From late April to late November
Closed during the winter months
Hours : 10 am −6 pm ( November ：until 5pm)
Closed on Thursdays
■Access to SMMA
Karuizawa Station of JR Line or Nakakaruizwa Station of Shinano Railway. Take a bus for ＜Kusatsu Onsen＞. 7 minutes walk from the Bus Stop＜Karuizawa Sengataki Onsen＞
■Address
2140 Nagakura, Serigasawa, Karuizawa−machi, Kitasaku-gun, Nagano.pref., Japan
Phone: 0267-46-2020
Fax : 0267-46-2021
Tokyo office/SMMA Factory:
2-11-5,Kugahara, Otaku, Tokyo, Japan
〒146-0085
Fax : 03-3752-8705