These informations were mostly gathered through my own experience, from watches I actually had in hands. They reflect what I observed and are not the holy truth. Page updated September 24th 2026 : Presmatic 5146-7090 added
Text & Pictures : D. Broglin – Watch & Vintage
This is an attempt to list all Seikomatic, Business, Business-A and Presmatic models and their variations. Work in progress of course !
Seikomatic time-only (1960-1964)
Seikosha 603 movement (17, 20 or 30 jewels)
J13044E case
J14064D case
1961
J14074D case
J14074E case
J14075D case
15007 case
Seiko 6201 movement
1980 case
8000R AD dial
Seikomatic SilverWave (1961-1964)
J12082 case
37.2 x 43.7 mm
screw back
Seikomatic Self Dater and Slimdate (1962-1966)
Seikosha 394 movement (24 jewels)
J13059 case
37.0 x 43.7 mm
15022D case
Seikosha 395 movement (39 jewels)
J13060 case
J13085 case
Seikosha 840 / Seiko 8305 movement
841990 case
8305 calibre
Seikomatic Weekdater (1963-1965)
Seikosha 400 movement
J13080 case
Seiko 6206 movement
8990 case
37.2 x 43.6 mm
snap back
8990R dial
Sporty version
Seiko 6218 movement
8950 case
8950T AD dial
This model was later available without “Weekdater” mention on the dial, see below.
8970 case
8970T dial
8971 case
8971T AD dial
8970T dial
1964-1965
8971 dial
8971 dial, gold capped
6218-8971
8970 dial
1965
6218-8971
vertically brushed 8971 dial
Seikomatic & Business (1964-1967)
Seiko 6216 movement
9000 case
9010T AD dial
day at 3 o’clock
1965
Seiko 6218 movement
8000 case
8000T AD dial
day at 3 o’clock
1966
8010 case
8010T AD dial
37.0 x 43.6 mm
1967
8950 case
8950T dial
Day at 3 o’clock
Seiko 6206 movement
Days in English or in Kanji, in all letters
Seikomatic until 1966, then Seiko Business
8000 case
8010 case
8010TAD dial
Day at 9 o’clock
1965-1966
w/o Seiko logo
black dial
8020 case
8030 case
8040 case
8040TAD dial
8041TAD dial
8070T AD dial
8070R AD dial
Silver 8070 dial
8070 dial
Days in Kanji
8070 dial
Days in Kanji
Flat/striped hands
Business 6206-8040
8041 dial
Flat/striped hands
8040 case
(following)
Seikomatic 6206-8040
Black 8040 dial
8050 case
8060 case
8070 case
8080 case
8100TAD dial
Regular bezel
Coin edge bezel
8090 case
8100TAD dial
8100 case
8110 case
8120 case
8120T AD dial
1966-1967
black dial
silver dial
8130 case
8130TAD dial
8150TAD dial
8130 dial
8150 dial
8140 case
8150 case
8160 case
8130TAD dial
Gold plated case
8170 case
8130TAD dial
Seiko 6245 and 6246 movement
Seikomatic-P
5106 movement
8000 case
8010 case
8020 case
Seikomatic-R, Business-A
8305 & 8306 movements
0020 case
0011TAD dial
Gold plated case
1010 case
5000 case
8000 case
8000TAD dial
8001 case
8001TAD dial
1967
Black 8001T AD dial
8010 case
8020 case
8030 case
8040 case
8050 case
8050TAD dial
monobloc case
35.6 x 41.0 mm
acrylic crystal
1967
8305-8050, 1967
8051 case
8060 case
1967
9010 case
1965
9030 case
37.5 x 42.2 mm
bevelled glass crystal
1967
gold plated case
Seikomatic-R, Business-A (1966-67)
8346 movement
7000 case
7000TAD dial
8346-7000
Black dial
8346-7000
8000 case
36.9 x 41.2 mm
8070T AD dial
day at 6 o’clock
1967
8346-8000
9000 case
1967
Business-A
9010 case
1966
8346-9010
Presmatic
5106 movement
7040 case
7040R AD dial
5146 movement
28,800 bph “Hi-Beat” frequency
7090 case
7090R dial
Gold plated case
The Seikomatic for sale
-
Seiko Seikomatic Weekdater J13080, 1963€ 470.00 -
Seiko 5 Sportsmatic 6619-7070, 1967€ 270.00 -
Seiko Seikomatic Weekdater 6206-8990, 1964€ 420.00 -
Seiko Presmatic Hi-Beat 5146-7090, 1970€ 390.00 -
Seiko Seikomatic Weekdater 6218-8950, 1965€ 430.00 -
Seiko Seikomatic Weekdater 6206-8080, 1965€ 390.00 -
Seiko Business-A 8306-8001, 1967€ 370.00 -
Seiko Business Weekdater 6206-8040, 1967€ 360.00