Waltham Size 18's, Good, Better, Best:

1892 Crescent St 1904

from left to right:

1883-Sterling 7J, Negative set, 1908
1883-820, 15J, Negative set, 1917
1892-Crescent St, 21J, Lever set, 1904

The Crescent St should have larger hands but otherwise is a full spec US Railroad watch.