Seiko movements with serial numbers

A list of Seiko's high-end movement calibres which were serialised with serial numbers:

Mechanical:

Calibre 55?, 1958, , manual-winding, 18,000 vph, 23 jewels, Suwa Seikosha - found in the Lord Marvel with Marvel-based movement

Calibre 3180, 1960.12, manual-winding, 18,000 vph, 25 jewels, Suwa Seikosha - found in the Grand Seiko First

Calibre 5400, 1961. -1965.?, manual-winding, 18,000 vph, 25 jewels, Daini Seikosha - found in the King Seiko First

Calibre 890A, 1963.06 - 1977, manual-winding, 18,000 vph, 15 jewels, Daini Seikosha - found in 89ST 010/TYB010 stop-watch.

Calibre 890B, 1963.06 - 1977, manual-winding, 36,000 vph, 15 jewels, Daini Seikosha - found in 89ST 020/TYB020 stop-watch.

Calibre 890C, 1963.06 - 1977, manual-winding, 360,000 vph, 15 jewels, Daini Seikosha - found in 89ST 030/TYB030 stop-watch.

Calibre 460, 1963. - 1964, manual-winding, 18,000 vph, 25 jewels, Suwa Seikosha - found in the Liner Chronometer

Calibre 395, 1963. , automatic-winding, 18,000 vph, 39 jewels, Suwa Seikosha - found in the Seikomatic Self Dater with Second Setting models.

Calibre 430/5722A, 1963.05?, manual-winding, 18,000 vph, 35 jewels, Suwa Seikosha - found in the Grand Seiko Self Dater (GSS)

Calibre 44A, 1963.?, manual-winding, 18,000 vph, 25 jewels, Daini Seikosha - found in the 44KS King Seiko

Calibre 4420A, 1963.12?, manual-winding, 18,000 vph, 27 jewels, Daini Seikosha - found in the 44KS King Seiko Chronometer, KSCM

Calibre 5740A, 1964, manual-winding, 18,000 vph, 23 jewels, Suwa Seikosha - found in the Lord Marvel with Seconds-stopping (hacking) function Crown-based movement, LMK

Calibre 4402A, , manual-winding, 18,000 vph, 25 jewels, Daini Seikosha - found in the King Seiko 44KS Calendar

Calibre 4419A , manual-winding, 18,000 vph, 25 jewels - found in King Seiko Calendar prototype with instant date-change.

Calibre 6215A, , automatic-winding, 19,800 vph, 35 jewels, Suwa Seikosha - found in the 300m Professional Divers' watch.

Calibre 6216A, , automatic-winding, 19,800 vph, 39 jewels, Suwa Seikosha - found in the Seikomatic 6216-9000.

Calibre 6245A, , automatic-winding, 19,800 vph, 35 jewels, Suwa Seikosha - found in the Seikomatic Chronometer 6245 and in the 62GS.

Calibre 6246A, , automatic-winding, 19,800 vph, 39 jewels, Suwa Seikosha - found in the Seikomatic Chronometer 6246 and in the 62GS.

Calibre 8325A, 1965.12, automatic-winding, 18,000 vph, 39 jewels, Suwa Seikosha - found in the Seikomatic-R 8325.

Calibre 4420B, 1966.?, manual-winding, 18,000 vph, 25 jewels, Daini Seikosha - found in the Grand Seiko 44GS

Calibre 2519A, manual-winding, 19,800 vph, 23 jewels, 196x, Daini Seikosha, all examples? 2539, 2559.

Calibre 5722B, ?, manual-winding, 19,800 vph, 35 jewels, Suwa Seikosha - found in the Grand Seiko Calendar (GSC)

Calibre 5740B, 1966, manual-winding, 19,800 vph, 23 jewels, Suwa Seikosha - found in the Lord Marvel with Seconds-stopping (hacking) function Crown-based movement, LMK

Calibre 2220A, manual-winding, 28,800 vph, 24 jewels, Daini Seikosha, some but not all examples

Calibre 1944B, manual-winding, 36,000 vph, 23 jewels, Daini Seikosha, some Chronometer-graded.

Calibre 6145, 1967. ?, automatic-winding, 36,000 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 61GS

Calibre 6146, 1967. ?, automatic-winding, 36,000 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 61GS

Calibre 4500A, 1968.09, manual-winding, 36,000 vph, 25 jewels, Daini Seikosha, some but not all examples

Calibre 4502A, 1968.09, manual-winding, 36,000 vph, 25 jewels, Daini Seikosha, some but not all examples

Calibre 4520A, , manual-winding, 36,000 vph, 25 jewels, Daini Seikosha - found in Grand Seiko 45GS

Calibre 4522A, , manual-winding, 36,000 vph, 25 jewels, Daini Seikosha - found in Grand Seiko 45GS

Calibre 5621, 196x. , automatic-winding, 28,800 vph, 25 jewels, Suwa Seikosha - found in King Seiko 56KS

Calibre 5625, 196x. , automatic-winding, 28,800 vph, 25 jewels, Suwa Seikosha - found in King Seiko 56KS

Calibre 5626, 196x. , automatic-winding, 28,800 vph, 25 jewels, Suwa Seikosha - found in King Seiko 56KS and in Officially Certified Chronometers

Calibre 5245, , automatic-winding, 28,800 vph, 25 jewels, Daini Seikosha - found in 52KS King Seiko Officially Certified Chronometer Special

Calibre 5246, , automatic-winding, 28,800 vph, 25 jewels, Daini Seikosha - found in 52KS King Seiko Officially Certified Chronometer Special

Calibre 5256, , automatic-winding, 28,800 vph, 25 jewels, Daini Seikosha - found in 52KS King Seiko Special

Calibre 6155, , automatic-winding, 36,000 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 61GS Special

Calibre 6156, , automatic-winding, 36,000 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 61GS Special

Calibre 6185, , automatic-winding, 36,000 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 61GS V.F.A

Calibre 6186, , automatic-winding, 36,000 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 61GS V.F.A

Calibre 4580, , manual-winding, 36,000 vph, 25 jewels, Daini Seikosha - found in Grand Seiko 45GS V.F.A

Calibre 5641, , automatic-winding, 28,800 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 56GS

Calibre 5645, , automatic-winding, 28,800 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 56GS

Calibre 5646, , automatic-winding, 28,800 vph, 25 jewels, Suwa Seikosha - found in Grand Seiko 56GS

Seiko Swiss Observatory Chronometer competition movement calibres.

Quartz:

Calibre 35A, 35SQ, 1969, Suwa Seikosha

Calibre 3502A, 35SQC, 1970, Suwa Seikosha

Calibre 3602A, 36SQC?, 197x?, Daini Seikosha

Calibre 3823A, 1971, Suwa Seikosha

Calibre 3922A/3923A, 197x, Daini Seikosha

Calibre 3883A, 1974, Suwa Seikosha

Calibre 4883A, 4883B, 197x, Suwa Seikosha