帝国海軍軍艦 - Imperial Navy Warship
五十鈴進水記念 - Isuzu Launching Commemoration (see also https://asiamedals.info/threads/193...-badges-anchor-design-1934.24889/#post-352962)
大正十年十月二十九日 - 29 October 1921
浦賀船渠抹式會社- Uraga Dock Company /Uraga Senkyo Kabushiki Kaisha/
Original case.
Made by Hattori https://asiamedals.info/threads/history-labels-i-marks-of-hattori-watch-shop-tokyo.19361/