Spaceview crystals

[ManSkirtBrew]

So I'm looking to get a replacement crystal for my 1971 Spaceview, case # 2531.

According to Jules Borel, the replacement is Bulova part # 1271AYS. This is the crystal the watch came to me with:

 

Searching around eBay and other suppliers, I'm finding variations for the same part number.

Also, the logo looks green in a lot of the pictures. Is that because it's lume, or are some of them actually green from the factory? I would think that'd blend in with the green plastic behind it.

Here are a few of the photos, all sold as 1271AYS. I would think the NOS one in the first picture is the definitive correct one, but it also has the green looking ink, so I figured I'd ask around. I also dug around on myBulova.com in the hopes of finding a catalog with pictures, but no luck.

Sadly, it seems that accutron214.com has gone down, but I found the Wayback machine gives us access to a lot of great stuff.

The two genuine Spaceview pictures they have show the Accutron tuning fork logo at 12 o'clock instead of 8.

 

This ad from 1972 shows it without the tuning fork at all. Look at those prices, though! That's a lot of money in 2023 dollars.

1970, again without the fork.

I know none of this is really important--it's my watch and I can do what I want--I just like knowing the history.

Advertising puffery! 1969.