Sig P226 serial Number starting with U677xxx

[TimL63]

Hi, I'm a newbie. I cannot get a date of manufacture on this gvun. Please help;

 

[Chuck Dye]

I am not sure of the newer production but on my P226 the date code is stamped into the slide below the muzzle and just forward of the dust cover. The translation is

A = 0
B = 1
C = 2
D = 3
E = 4
F = 5
G = 6
H = 7
J = 8
K = 9

Mine is stamped JH and so was made in 1987.