SUC RS 564-2 21.4mm x 17.7mm
1954 Bulova with a 21J 7AA L4 stamped movement, 10K Gold filled bezel and caseback with a silver checkerboard dial, applied Gold numbers/markers and Gold hands. The crystal is slightly smaller than the standard 21.6mm x 17.6mm His Excellency, AA, and other crystals Bulova uses, and is a flat bezel style. The crystal shown fits like a glove, but may or may not be for this watch, I don't have a Rocket book to check.
Nice running/looking watch with a Black croc grain leather strap.
* Update 10-22-2012
Request to change from unknown to Park Lane as a result by the new ad found by Plainsman