Opinions On A Submarine Badge

[Vpep]

Hello Everyone,
I would like to get some opinions on this submarine badge. A friend of mine is offering it to me, but I don’t have a lot of knowledge about Japanese badges other than what I’ve read from Nicks articles. To me the back looks suspicious due to its crude soldering. I would love to hear others with more knowledge about these things. Thank you in advance and I hope you enjoy the photos.
Thanks
Vic

[ghp95134]

I do not know regarding authenticity. The sloppy soldering looks like a modern repair to me; so, maybe authentic but recently repaired?

[Vpep]

Thanks for the reply. That sloppy soldering was a concern of mine as well

[JapanX]

Original.
Hook is a period replacement.
"Sloppy soldering" is a typical field repair Japanese Submariner Badges with Restored and Resoldered Hooks | Medals of Asia

[Vpep]

Thanks for the info and the link.