Serial Numbers by Date of Manufacture

ROLEX

"Round Number" Serial Number List

Serial # ........................Date

20000 .............................1927

22500 .............................1928

25000 .............................1929

26500 .............................1930

28000 .............................1931

28500 .............................1932

29000 .............................1933

32000 .............................1934

35000 .............................1935

37000 .............................1936

40000 .............................1937

55000 .............................1938

71000 .............................1939

90000 .............................1940

106000 .............................1941

150000 .............................1942

230000 .............................1943

270000 .............................1944

302000 .............................1945

400000 .............................1946

529000 .............................1947

570000 .............................1948

600000 .............................1949

650000 .............................1950

700000 .............................1951

800000 .............................1952

900000 ...........................1953

10000 to 300000 .........1953 to 1957
(At this time Rolex started the numbering system back at 10000. This time period also saw the start of the "Roman Numeral" dating system explained above.)

350000 .............................1958

400000 ...........................1959

550000 .............................1960

700000 ...........................1961

800000 .............................1962

900000 ...........................1963

1000000 .............................1964

1200000 ...........................1965

1400000 .............................1966

1600000 ...........................1967

1850000 .............................1968

2300000 ...........................1969

2500000 .............................1970

2900000 ...........................1971

3300000 .............................1972

3750000 ...........................1973

3900000 .............................1974

4250000 ...........................1975

4500000 .............................1976

5000000 .........................1977

5400000 .............................1978

5950000 .........................1979

6400000 .............................1980

7000000 .........................1981

7350000 .............................1982

7750000 .........................1983

8100000 .............................1984

8600000 .........................1985

9000000 .............................1986

9500000 ..........................1987
(Start of the letter prefix system.)
R000001 .........................1987

L000001 .........................1989

E000001 .........................1990

X000001 .........................1991

N000001 .........................1991

C000001 .........................1992

S000001 .........................1993

W000001 .........................1994

T000001 .........................1996

U000001 .........................1997

A000001 .........................1998

P000001 .........................2000

K000001 .........................2001

Y000001 .........................2002

F000001 .........................2003

Also started engraving the serial number inside the bezel (under the crystal)

D000001 .........................2005

Z000001 ..........................2006

M000001 ..........................2007

V000001 ..........................2008

G000001 ...................Mid 2010

Random Numbers ....Late 2010 to present

(Now features 8-digits instead of 7)

 

TUDOR

"Round Number" Serial Number List

Serial # ........................Date

240000 .............................1956

250000 .............................1957

260000 .............................1958

270000 .............................1959

280000 .............................1960

340000 .............................1961

340000 .............................1962

390000 .............................1963

430000 .............................1964

430000 .............................1965

560000 .............................1966

590000 .............................1967

620000 .............................1968

680000 .............................1969

740000 .............................1970

750000 .............................1971

770000 .............................1972

790000 .............................1973

810000 .............................1974

830000 .............................1975

840000 .............................1976

860000 .............................1977

880000 .............................1978

900000 .............................1979

930000 .............................1980

950000 .............................1981

970000 ...........................1982

980000 ............................1983

990000 .............................1984

140000 ...........................1985

170000 .............................1986

190000 ...........................1987

210000 .............................1988

260000 ...........................1989

B330000 .............................1990

B360000 ...........................1991

B390000 .............................1992

B500000 ...........................1993

B560000 .............................1994

B590000 ...........................1995

B790000 .............................1996

B850000 ...........................1997

B990000 .............................1998

H130000 ...........................1999

H170000 .............................2000

H240000 ...........................2001

H300000 .............................2002

Clasp Codes

For a long time the meaning of the letters on the clasp was not known, because Rolex does not publish official information on this topic. Matthias from the r-l-x forum proposed a theory, which appears to be confirmed by an interesting discussion on that board. In this theory the marking on the clasp corresponds to the manufacturing date of the clasp (and normally to the bracelet, too). An additionally added "S" designates a replacement (or ‘S’ervice) part. 
 
With the known data the theory of the clasp codes is like following table. Although the table is based on a big database of members from the r-l-x-forum, it is nevertheless still another assumption - the correctness cannot be guaranteed for this reason. Important to mention is that the data refers to the date of manufacturing. The sales date can deviate substantially from it. 
 
Year.........................   Code
1976.........................    A*
1977.........................    B
1978.........................    C*
1979.........................    D
1980.........................    E
1981.........................    F
1982.........................    G
1983.........................    H*
1984.........................    I*
1985.........................    J*
1986.........................    K*
1987.........................    L*
1988.........................    M*
1989.........................    N*
1990.........................    O
1991.........................    P
1992.........................    Q*
1993.........................    R
1994.........................    S
1995.........................    T or W
1996.........................    V
1997.........................    Z
1998.........................    Z or W
1999.........................    X
2000.........................    AB
2001.........................    DE
2002.........................    DT
2003.........................    AD
2004.........................    CL
2005.........................    MA
2006.........................    OP
2007.........................    EO

* These letters are assumed to be correct but they are not proven as Rolex does not release this information to confirm them.