Seeking info on a Seamster Deville for sale

Hi all! Anyone know about this model for sale on Ebay?

https://www.ebay.com/itm/3844662747...rentrq:c2ed40b417c0a646c73cc331ffe864dc|iid:1

I asked the seller for the reference number and he didn't know it and his picture of this watch's inside caseback is too blurry to read. Is this a solid gold watch? Or is it plated? Wondering also if this watch came on a bracelet, gold or otherwise? Your insight is appreciated!

I think you need to get the seller to provide an in focus picture of the caseback, and once you have the reference, work from there.

If he’s not willing to do that, then he’s clearly not that keen to sell it…

Ah, the seller just got back to me with the reference number - but y'all are faster! I am surprised to see a gold-filled watch with a gold-tone caseback, which is what the listing watch has. Usually casebacks are steel in gold-filled watches. In any case, this watch isn't right for me, as I don't want a gold-filled piece, but it is nice to learn about it and see that awesome vintage ad. Thanks as always.