Yea he’s not actually joking, while they’re nice watches there are a lot of them that survived, and the style is no longer worn by women as the small bracelet like watch design is long since out of fashion so if you’re not going to wear it, the only real value it has is in the diamonds and gold as that value as scrap will be about the same or higher than its value as a watch.
It’s a sad thing to say as they’re nice Omegas of the era but ladies watches have changed so much with time that there is no real market for the old ones unless for sentimental reasons while men’s watches have stayed broadly similar, much in the same way that women’s clothes have changed with time while men’s suits have stayed the same.