Tommy......
Before you ask Chris, "How do you know it is a 1999?"......
FYI. The way Hamer serial numbers work (not ncludng the really early "4-digit" ones) is that the first digit s the YEAR it was built.
BUT, your's having a "9" means it could be either a '79, '89, '99 or 2009.
Then, to figure out which of those it actually is, you look to se how large the rest of the numbers are. So, your's is 49767...which means it is the 49 thousand 767th instrument ever made by Hamer. To know which of the decades it falls into, you sort of need to know Hamer production history a little. SNs up thru the 40,000s range would be near the eand of the 1990s range.
Without seeing it, being a Chaparral 12ver.....I would guess it might be Black? I think around 98 percent of the Chap 12vers were Black.