help identify a longines sideral

Hi, I am enamored with this watch but can't find any specs or other info. It seems later than the Lindbergh and Weems famous versions. Any guidance appreciated. Bill

You are not alone; that has long occupied my waking thoughts and restless dreams. Goldberger suggests 6 were made(i can pm you a copy,of pages from his book if you wish). I know of one currently on offer, for........
...............
>500k.

1938/9 ish is correct...

Just realized the photo is of the one for sale....

Wow I've never seen such a Longines before. I'd like to know more. 😲

Youch. I searched Google and didn't find it. Probably operator error. At any rate I will just cut out the photo and wear it on my wrist.That should free up my watch budget for the rest of my life. 😕

It sure is a beautiful and unique design. Never seen a Longines with such a design (especially that crown)... Do you mind if I, too, print it and wear it on my wrist ? We'll call it a limited edition, 2 ever made, bla bla... 😁

Yes that crown😜 We could start a club! Or maybe a kickstarter, you know in the name of preservation by likeminded watch huggers.

Are you talking about selling paper-printed cut-out versions of this watch for huge prices ? Because I am in brother!!

Funny, one could 3d print that thing with approximately good results for 10% or less of it's value... God knows what the future holds for us when 3d printers and 3d scanning lasers take over the markets. It's gonna be replicas and fakes galore! 😬

Maybe I should stock up on vintages and stuff, maybe in a few years they'll sell for even more money...

EDIT: These siderographs were apparently made sometimes between 1932 and 1940. A b&w photo.