Seiji Watanabe boxer
- bouts
- 12
- won
- 6
- lost
- 5
- draw
- 1
- Status
- inactive
- Division
- super featherweight
- Debut
- 2010-05-23
- Height
- 5′ 6½″/169cm
- Reach
- -
- Age
- -
- Born
- 1987-08-11
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2016-06-20 | Tenmei Serizawa | WLLWWW | Korakuen Hall | LOST KO |
| 2014-11-17 | Ryu Horiguchi | WWLLWL | Korakuen Hall | WIN Majority decision |
| 2014-04-30 | Yasuhiro Sakurai | LLLLLL | Korakuen Hall | LOST Unanimous decision |
| 2013-11-26 | Takahiro Iida | WWLLDW | Korakuen Hall | WIN Split-decision |
| 2013-05-21 | Taro Oikawa | LW | Korakuen Hall | LOST Technical knockout |
| 2012-10-27 | Naoto Takanashi | WLWLWL | Tokyo International Forum | WIN Unanimous decision |
| 2012-07-13 | Katsunori Nagamine | WWW | Korakuen Hall | LOST Technical knockout |
| 2011-12-07 | Tsuyoshi Nishimura | WLWL | Korakuen Hall | WIN Unanimous decision |
| 2011-09-07 | Ryota Yamami | WLLWLL | Korakuen Hall | DRAW Majority decision |
| 2011-04-27 | Tsuyoshi Nishimura | WL | Korakuen Hall | LOST Technical knockout |
| 2010-09-25 | Hiroki Uchiumi | debut | Tokyo Big Sight | WIN Technical knockout |
| 2010-05-23 | Daisuke Kurihara | debut | Korakuen Hall | WIN Technical knockout |
