The Numbers And Letters On The Clasp

As you can see on the Photo the newer clasps have a
number and letter code on it.

Matthias, a valued member of the German Rolex Forum,
(www.r-l-x.de) had the idea of a decryption....





So here is a first try (no guaranty):


A
B,F,D
G
H
N
J
K
L
M
O
P

R
S
T
V
Z
U
X
AB
DE
DT
AD
CL
MA
OP
EO
PJ
LT

= 1976
= 1981
= 1982
= 1983
= 1984
= 1985
= 1986
= 1987
= 1988
= 1990
= 1991
= 1992
= 1993
= 1994
= 1995
= 1996
= 1997
= 1998
= 1999
= 2000
= 2001
= 2002
= 2003
= 2004
= 2005
= 2006
= 2007
= 2008
= 2009

The number behind the letter(s) seems to be the month the
clasp was produced.

So CL2 would be February 2004

If there is an "S" in front of the code then your clasp was changed
on a "S"ervice.