Seibukan was founded and developed by Shimabukuro Zenryo Sensei,

a direct student of Kyan Chotoku Sensei in Okinawa Japan.


Seibukan is the Sukunaihayashi style of the Shorin Ryu familiy. 

It is  precise and powerful but requires speed and agility at the same time.


About Us

The Dojo Inner Bushido Center in the city of Zürich which was founded in 2010 is the main training center for traditional Okinawa Shorin-Ryu Seibukan Karatedo in Switzerland. The other Dojo is located in a small community of Gockhausen in Dübendorf, a suburb of Canton Zürich and the fourth largest city in the canton. Now the two Dojos are home to a growing number of young and adult students from the neighborhood.




Jun Sensei

The chief trainer of the Okinawa Shorin-Ryu Seibukan Karatedo in Switzerland is Jun Sensei. He was exposed to Karate at an early age in his hometown of Bulan where he frequently visited the local Karate Dojo to watch the trainings and tournaments. Karate was taught at that time only to adults. He then formally started his training at the age of 17 when he entered college in Manila under a Japanese instructor. Whe he came to Zürich, Switzerland he continued his training in Asia Sport Center in Zurich for many years. Along the way, he also trained in Shito-Ryu Seikokai Karate and came to know many other Karate instructors, some among them very respectable and true to their art and some who turned out to be not worthy of the art and tradition. Jun Sensei had also learned other martial arts like Kungfu and the so called internal martial arts like Tai Chi . But at the bottom, he considers himself a Karateka and prefers to teach and concentrate on this traditional Okinawan art because of its focus on discipline, respect and gratitude on one side, and of the simplicity and effectivity of its techniques on the other side.


Jun Sensei is a direct student of Grandmaster Zenpo Shimabukuro of Okinawa, the son of the founder of Okinawa Shorin-Ryu Seibukan Karatedo, Great Grandmaster Zenryo Shimabukuro, himself a student of Chotoku Kyan, one of the greatest figures in the history of Okinawan Karate. Jun Sensei‘s Karate mentor in Europe is Master Jamal Measara of Germany, a senior direct student of Grandmaster Zenpo Shimabukuro and the chief trainer of Shorin-Ryu Seibukan Karatedo in Germany.


Karatedo, like any other art, unfolds its true meaning to the practitioner only after decades of hard training and dedication, not after a short burst of fanatic training for some months. A true art simply needs a lifetime of study and practice. It is with this understanding that Jun Sensei approaches Karatedo, the way of the empty hand.

Contact Us

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Honbu Dojo Switzerland
Inner Bushido Center

Witellikerstrasse 22 | Lengghalde 5

8008 Zürich

076 223 63 10

Jun (asuncion) sensei

Inner Bushido Center

Rütistrasse 52

8044 Gockhausen

076 223 63 10

Jun (asuncion) sensei