WWII Imperial Japanese Navy IJN Seiko Seikosha Pilot Watch Type 1 cronometro 0906
This is a Seikosha Japanese Navy Aviation Watch, Luminous Seconds Clock Type 1, Pocket Watch. ・Manufacturer: Seikosha. The back is engraved with "Luminous Seconds Clock Type 1, Sky, No. 6812.". The watch's overhaul history is unknown.