Starting in 1941 in some cal. 30 was introduced the so-called “de luxe finish”, a double copper plating on beryllium bronze (an alloy of beryllium and 2.25% copper) that made the movement more resistant mechanically and to oxidation, as well as aesthetica...
. . . are absolutely perfect. But if I'd been more discriminating, I wouldn't have any at all. To score an rg these days, one must be willing to accept imperfections. Practically nothing that's come up recently is flawless. There's a 2410 on eBay now with...