Beautifully executed badges.
1st variation.
昭和九年度 - 1934
陸軍特別大演習参加記念 - Army Special Large Maneuvers Participation Commemorative
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Map of Kanto area.
Specimen with practically intact original blackening.
Another watch fob that is using this very same design.
For the other two see https://asiamedals.info/threads/commemorative-watch-fob-for-suppression-of-guerrillas-in-rehe-province.23216/#post-346957
and...
1935 chemical warfare maneuvers
1st infantry regiment
chemical weapon
commemorativewatchfob
imperial army of japan
maneuvers commemoration badge
化学戦演習参加記念章
歩兵第一連隊
See also https://asiamedals.info/threads/anniversary-of-manchukuo-founding-commemorative-badge.24292/
Reverse reads
大満州國 - Great Manchukuo Empire
建國周年記念 - Anniversary of National Foundation Commemorative
大同二年三月一日 - March 1, 1933
Superimposed flag that so often go missing.