Size 46 x 39 mm.
Obverse
N.N.A.F.
豫二 for "B Training"
2601 - 1941
reserve
乙種第十一期 - B-Class [Flight Reserve Trainee] 11th class
飛行豫科練習生 - Flight Reserve Trainee Program (飛行予科練習生/Hikō Yoka Renshū-sei) a.k.a. Yokaren (予科練)
卒業記念 - Graduation Commemorative
In 1928, a new program was...
See also https://asiamedals.info/threads/7th-flight-class-of-yokaren-program-graduation-commemorative-watch-fob.27130/
Private collection. Photos courtesy of the owner.
Obverse
雄飛 - Launching out, Embarking upon (a career) /雄 - superiority; excellence; 飛 - fly/
reverse
Yokaren program...
7th class of navy flight school watchfob
japanese navy flight school graduation badge
japanese navy flight school graduationwatchfobyokarenprogramgraduationcommemorativewatchfob
第七期飛行練習生卒業記念章
飛行練習生卒業記念章