Size 27 x 39 mm.
Obverse
渡 for 渡邊滋 - Shigeru Watanabe
reverse
勇猛 - Bravery
果敢 - Determination
/勇猛果敢 - Daring and Resolute; Having Dauntless Courage/
渡邊滋部隊從軍記念 - Shigeru Watanabe Unit Service Commemorative
japanese army badge
japanese army watch fob
japanese badge
japanese military badge
japanese military watch fob
shigeru watanabe unit service badge
shigeru watanabe unit service watch fob
從軍記念章
渡邊滋部隊從軍記念章
Unofficial commemorative medal. The actual issuer is currently unknown.
1st variation "red and white ribbon".
Reverse reads
從軍記念章 - Army Service Commemorative Medal/Badge
Judging by the direction of inscription (from right to left) these could be post-war made.