Top Row, left to right:

1) 1920s to 1930s Gruen, 18K white gold, 5/8" or ~16mm opening. Price $375.

2) 1920s to 1930s Speidel, 14K white gold, 5/8" or ~16mm opening. Price $275.

3) 1920s to 1930s Hadley, 14K white gold, 5/8" or ~16mm opening. Price $275.


Bottom Row, left to right:

4) 1930s to 1950s Unbranded, 14K white gold, 5/8" or ~16mm opening. Price $250. SOLD

5) 1930s to 1950s Hamilton, 14K yellow gold, 5/8" or ~16mm opening. Price $175.

6) 1920s to 1930s Gruen, Iridium Platinum, ~12mm opening. Price $350.