The Titan was the Poor Man's Van Horn! It was identical to the Van Horn apart from the cheaper 10K GF case. It first appeared in 1957 and can be found with either the 500 or 500A movement. It has either a white or black dial.

Hamilton Titan (white dial); 10K Gold Filled; Stainless Steel Screw Down Back; 34mm diameter incl. crown; Cal. 500; 1959			Hamilton Titan (white dial); 10K Gold Filled; Stainless Steel Screw Down Back; 34mm diameter incl. crown; Cal. 500; 1959
Hamilton Titans: White and Black dial versions			I have no idea how I ended up with four!	The two Titans alongside the more expensive Van Horn on the right

The following Titan is somewhat special. It is thought to be a Hamilton wear test watch and has 1) a display back, 2) a rare 502 movement, 3) a case back with the word "ELECTRIC" stamped in it and 4) applied hour markers on the dial:

Hamilton Titan 502 Wear Test Watch

Hamilton Titan 502 Wear Test Watch

Hamilton Titan 502 Wear Test Watch

Lastly, a Titan II which bears no resemblance to the earlier Titan:

Hamilton Titan II; 10K Gold Filled; Opens thru the crystal; Cal. 505; 1965