Wired W36 Series Instruction Manual page 40

SEIKO CUSTOMER SERVICE CENTER:
(toll free in Japan, automatically connected to one of the above listed Seiko Service Centers, close to where you are)
SEIKO CUSTOMER SERVICE CENTER
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Kokusai building, 3-1-1, Marunouchi, Chiyoda-ku, Tokyo
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Osaka Yotsubashi Shinmachi building 1-4-24, Shinmachi, Nishi-ku,
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Osaka-shi
HEAD OFFICE 1-2-1, Shibaura, Minato-ku, Tokyo
http://www.seiko-watch.co.jp/
0120-612-911