Rolex Clasp Codes :
On the inside of the clasp hinge is a code that designates the month and year that the clasp/bracelet was manufactured.
When examing watches at an AD or watch mart, do not be surprised if a bracelet is a few years older than the watch case. In modern Rolex watches, it is rare to find a clasp code that is the same year as the watch case.
On the clasp hinge is one two letters followed by a number.
The letters represent the year code, and the numbers signify the month.
A clasp code of OP9 indicates the clasp/bracelet was manufactured in 2006, and the number indicates the month of September.
Here is a supposed list of date / years code :
A = 1976
B = 1977
C = 1978
D = 1979
E = 1980
F = 1981
G = 1982
H = 1983
I = 1984
J = 1985
K = 1986
L = 1987
M = 1988
N = 1989
O = 1990
P = 1991
Q = 1992
R = 1993
S = 1994
W = 1995
V or U = 1996
Z or U = 1997
Z - W= 1998
X = 1999
AB = 2000
DE = 2001
DT = 2002
AD = 2003
CL = 2004
MA = 2005
OP - 2006
EO = 2007
PJ = 2008
LT = 2009
RS = 2010
CP/CX = 2011
Random three character alphanumeric = 2011+
(e.g. CX3, J4M, 5AM, etc)
S = Service: Clasp replaced during a "S"ervice.
