Watch fob with identical design of obverse https://asiamedals.info/threads/army-kendo-and-jukendo-award-watch-fobs-to.24548/page-3#post-369662.
Obverse
賞 - Award
reverse
剣術最優勝 - Swordsmanship Champion
帝国在郷軍人会満川朕合支部 - Imperial Military Reservist Association Mitsukawa Branch
imperial military reservist association badge
japanese reservist association badge
japanese swordsmanship champion award badge
reservist association mitsukawa watch fob
swordsmanship excellence watch fob
剣術最優勝賞章
帝国在郷軍人会満川朕合支部剣術最優勝賞章
帝国在郷軍人会満川朕合支部剣術最優賞章
帝国在郷軍人会章