I just purchased a Patek Philippe watch; ref. # R.H26327, movement (#1,360,505), case (#2,664,687). Can anyone tell me what these numbers say about my watch or where I can find out? It has an 18k yellow gold case and bracelet, square face with Patek Philippe Geneve at 12 o'clock, and Tiffany and Co. at 6. Any help would be appreciated.

