See also Mint-made watch fobs https://asiamedals.info/threads/192...l-wedding-commemorative-watch-fob-13-1.24205/
Size 27 mm.
Obverse
奉祝 - Celebration
reverse
東宮御成婚記念 - Crown Prince's Wedding Commemorative
Size 27 mm.
Obverse
奉祝 - Celebration
reverse
東宮御成婚記念 - Crown Prince's Wedding Commemorative