Three of the best

 

From left to right.

Waltham 1892-Crescent St, 1904, Size 18, 21 jewels and adjusted to heat, cold, isochronism and 5 positions, lever set and a true US Railroad watch.

Waltham 1908-Vanguard, 1913, Size 16, 23 jewels (Ruby plus a diamond end stones), adjusted to heat, cold, isochronism and 5 positions, lever set and another true US Railroad watch.

Waltham 1892-Vanguard, 1900, Size 18, 21 Jewels (mainly ruby), adjusted to heat, cold, isochronism and 5 positions, pendant set and with roman numerals on the face so not a true railroad watch, but close. In a filled gold case.