Blasts from the Past...
L to R...14K Hamilton 'Wesley' from the 1940s, 9K Buren Grand Prix from the 1930s, 14K Pierce from the 1920s/30s, 14K Lord Elgin with 'step side' case from the 1950s.
The Hamilton looks like new. The Buren has a 15 jewel high grade movement with 'three finger bridges' and uses a 'sew on' or one piece strap, the strap bars are soldered in the lugs. The Pierce has 15 jewels iirc and is in fine condition. The Lord Elgin is in fine condition except for the 'age spot' on the dial, it has not been wet as far as I can tell.
The dates are a guess and info on the Hamilton and Lord Elgin can be found but I am too lazy to chase it down. Many Hamiltons have the model name engraved inside the case back.
After the current 'Gold Rush' pans out, there may not be many of these old classics left.