joe_lin, can you post pictures of your 1860? Does it have a hinged hunter back covering the display back movement? If it does, is the number at the 12:00 position on the case back surrounding the display back marked as 1860, or is it marked as 16/1860/1? Also, at the 6:00 position on the case back surrounding the display back, is the serial number 3 digits with a space then 3 digits, or is it 6 digits with no space?