Seiko Blue Book Automatic Movement Chronology

Name/Series	Calibre	Jewels	Start	End
Self-Winding	11A	17 21	1955	1958
Gyro Matic	290	17	1959	1960

Seikosha 62 Stream

Name/Series	Calibre	Jewels	Start	End
62 Series Seikomatic	603 6201B	30	1960	1963
Self-Dater	394	24	1962	1964
Self-Dater	395	39	1963	1964
Week-Dater	400	33	1963	1965
Week-Dater	6206B	26	1963	1967
Week-Dater	6218A	35	1964	1967
Week-Dater	6216A	39	1966	1968
Seikomatic Chronometer	6245A 6246A	35 39	1966	1967
62GS Grand Seiko	6245A 6246A	35 39	1967	1969
62 Series Silver Wave	6201B	20	1962	1963
62 Series World Time	6217A	17	1964	1967
Diver 150M	6217A	17	1965	1967
Diver 300M	6215	35	1967	1968

Seikosha 83 Stream

Name/Series	Calibre	Jewels	Start	End
83 Series Seikomatic Slim	830	30	1963	1965
Seikomatic Slim Date	840 8305B	30	1963	1966
83 Series Seikomatic-R	8305C	30	1965	1968
83 Series Seikomatic-R	8325A	39	1966	1967
83 Series Business-A	8306A	30	1965	1969
83 Series Business-A	8346A	27	1966	1969

Seikosha 66 Stream

Name/Series	Calibre	Jewels	Start	End
66 Series Sportsmatic	245 6601AB	17 19	1961	1966
Sportsmatic Calendar	790	19	1962	1965
Sportsmatic 5	410 6606B	21	1963	1964
66 Sportsmatic 5	6619A	21	1964	1967
66 Series SilverWave	2451	17	1964	1966

Seikosha 76 Stream

Name/Series	Calibre	Jewels	Start	End
76 Series Sportsmatic	820 7625A	17	1963	1969
Sportsmatic 5 DX	7606A	23	1964	1967
76 Series Sportsmatic 5 DX	7619A	25	1965	1967
Sportsmatic DX	7605A	23	1966	1967

Seiko 40 Stream

Suwa Seikosha automatic alarm movement

Name/Series	Calibre	Jewels	Freq	Start	End
40 Series Bell-Matic	4006A	17 21 27	5.5	1967	1978
40 Series Business Bell	4005A	27	5.5	1967	1974

Seiko 45 Stream

See Also: Daini Seikosha 45 Stream

Daini Seikosha Hi-Beat hand-winding movement

Name/Series	Calibre	Jewels	Freq	Start	End
45KS King Seiko	4500A	25	10	1968	1972
45KS King Seiko	4502A	25	10	1968	1973
45KS King Seiko Chronometer	4500A 4502A	25	10	1969	1972
45GS Grand Seiko	4520A 4522A	25	10	1968	1972
45GS Grand Seiko Chronometer	4520A	25	10	1969	1970
45GS Grand Seiko VFA	4580A	25	10	1969	1973

Seiko 51 Stream

See Also: Daini Seikosha 51 Stream

Daini Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
51MW Seikomatic P	5106A	33	5.5	1967	1970
515 New Five	5126A	23	5.5	1967	1970
515D New Five DX	5139A	27	5.5	1967	1969
51PMW Presmatic	5146A	27 30	8	1969	1971

Seiko 52 Stream

See Also: Daini Seikosha 52 Stream

Daini Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
52 Series Lord Matic	5206A	23 25	8	1970	1974
52 Series Lord Matic	5216A	23 25	8	1973	1977
52KS King Seiko Chronometer Special	5245A 5246A	25	8	1971	1973
52KS King Seiko Special	5256A	25	8	1973	1975

Seiko 56 Stream

See Also: Suwa Seikosha 56 Stream

Suwa Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
56 Series Lord Matic	5601A	23	6	1968	1977
56 Series Lord Matic	5605A	25	6	1968	1971
56 Series Lord Matic	5606A	23 25	6	1968	1977
56KS King Seiko	5621A 5621B	25	8	1969	1974
56KS King Seiko	5625A 5625B	25	8	1968	1975
56KS King Seiko	5626A 5626B	25	8	1968	1974
56 Series Chronometer	5625B	25	8	1969	1974
56 Series Chronometer	5626B	25	8	1969	1975
56 Series Grand Seiko	5641A	25	8	1971	1973
56 Series Grand Seiko	5645A	25	8	1970	1974
56 Series Grand Seiko	5646A	25	8	1970	1975
56DM Duo Time	5619A	23	6	1972	1975

Seiko 57 Stream

Suwa Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
57LM Lord Marvel LM36	5740C	23	10	1967	1978

Seiko 61 Stream

See Also: Suwa Seikosha 61 Stream

Suwa Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
61 Series New Five DX	6106A 6106B	25	6	1967	1976
61 Series Five Actus	6106C	23 25	6	1969	1977
Seikomatic Calendar	6105A 6105B	17	6	1968	1977
Five	6119A 6119B 6119C	21	6	1967	1976
61GS Grand Seiko	6145A 6146A	25	10	1968	1970
61GS Grand Seiko Special	6155A 6156A	25 25	10	1970	1973
61GS Grand Seiko VFA	6185A	25	10	1969	1972
61GS Grand Seiko VFA	6186B	25	10	1972	1975
61 Series World Time	6117A 6117B	17 17	6	1968	1977
61 Series Navigator Timer	6117A 6117B	17	6	1968	1976
61 Series 150M Diver	6105A	17	6	1968	1977
61 Series 300M Diver	6159A	25	10	1968	1974
61 Series 600M Diver	6159B	25	10	1975	1979
61 Series Five Sports Speed-Timer	6139A 6139B	21	6	1969	1979
61 Series Chronograph	6138B	23	6	1971	1975
61 Series Five Sports Speed-Timer	6138A 6138B	23	6	1970	1979

Seiko 63 Stream

Suwa Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
63 Series Five Actus	6306A	21	6	1976	1981
Lunar Calendar	6347A	23	6	1982
Final Model	6309A	21	6	1988?

Seiko 70 Stream

Daini Seikosha automatic movement

Name/Series	Calibre	Jewels	Freq	Start	End
70 Series Automatic C	7005A	17	6	1968	1976
70 Series Five Sports Speed-Timer	7017A	21	6	1970	1972
70 Series Five Sports Speed-Timer	7015A	21	6	1972	1975
70 Series Chronograph	7018A 7018B	23	6	1971	1973
70 Series Actus	7019A	21	6	1969	1980