Seiko Champion ID and Repair

[Jsteady8]

I’ve bought this beautiful Seiko Champion manual wind watch a couple years ago and have never been able to identify it. The watch has a sundial and a sectored dial, but is unique in that unlike the Seiko j15400, it doesn’t have any lines at 3 o’clock or 9 o’clock. I believe it’s from 1960-1965, but have never been able to confirm that. 
 

First of all, can anyone help identify the watch?

Second, I’m looking for a replacement minute hand, but haven’t been able to find one anywhere. Any ideas of where I could start?

 

thanks!

[watchweasol]

Hi  would it be possible to remove the back and post a picture or two.   Material houses such a cousins uk, jules borel, esslibgers , A.G.Thomas, H.S.Walsh all carry hands as pairs and also assortments so you may be lucky and find something suitable. Finding an exact match for  hands from the 50s/60s will be a hard task.     Whats wrong with the original hands?.

[Jsteady8]

27 minutes ago, watchweasol said:

Hi  would it be possible to remove the back and post a picture or two.   Material houses such a cousins uk, jules borel, esslibgers , A.G.Thomas, H.S.Walsh all carry hands as pairs and also assortments so you may be lucky and find something suitable. Finding an exact match for  hands from the 50s/60s will be a hard task.     Whats wrong with the original hands?.

I’m not with the watch at the moment but will try to post one when I’m home. 
Thanks for the recommendation on those material houses - I’ll start digging. 
 

Unfortunately, I took the watch to get serviced recently and the shop failed to secure the crystal properly and the minute hand fell off somehow, so the watch is currently missing a minute hand entirely.