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I just received another ebay oddity (item 110550103256) that has me scratching my head. It is a 6106-6009 according to the case back with a dial code of JAPAN 6106-6609 RAD. The dial is charcoal gray with a crosshair and no day/date o
penings. What the heck is it
? Thanks in advance.
 

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Probably caseback from another watch.. does the seller have many watches for sale? Is he from the SEA? (as I am).


Seiko numbering rationale for normal watches usually starts with xx00 for watches without day or date, xx02 for watches with day only.


Anil
 

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This chart shows what are probably the only known variations for the 61xx movement series.
Note: the only no day/no date models are the 6100 and 6110. The 6106 is a full day/date model.

Unless Seiko really blew it, this watch may not be a Seiko :'(

Calibre Comments
Winding
Nº of jewels
Calendar
Frequency
(beats per hour)
Versions
(Revisions)
Introduced

[/l][/t]






6106
Hack
[/t] Automatic
17, 23, 25
day and date
21.600 bph
A, B, C
1967 (A) / 1968 (B) / 1969 (C)


[/t]





6100 (61)
-
Manual
21
N/A
21.600 bph A
1968
6102
-
Manual 21
date
21.600 bph A
1968
6105
Hack on version B
[/t] Automatic 17
date
21.600 bph A, B
1968
6109
-
Automatic 17
day and date 21.600 bph A
-
6110
-
Manual
21
N/A
21.600 bph A
1971
6117
GMT
[/t] Automatic 17
date
21.600 bph A, B
1968
6119
-
Automatic 21
day and date 21.600 bph A, B, C
1967 (A) / 1968 (B) / 1969 (C)
6138
Chronograph (60s, 30min, 12h)
[/t] Automatic 21, 23
day and date 21.600 bph A, B
1970
6139
Chronograph (60s, 30min)
[/t] Automatic 17, 21
day and date 21.600 bph A, B
1969
6145 / 6146
Hi-Beat (GS)
[/t] Automatic 25
date / day and date 36.000 bph
A
1967
6155 / 6156
Hi-Beat (GS)
[/t] Automatic 25
date / day and date 36.000 bph A
1971 / 1970
6159
Prospex Diver
[/t] Automatic 25
date
36.000 bph A, B
1967 (A) / 1975 (B)
6185 / 6186
Hi-Beat (GS)
[/t] Automatic
25
N/A / day and date 36.000 bph A, B
1969 / 1972
 

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I've got two or three no-day/date 6106s. They're the real deal and one of the nicer looking 6106s. I'll try to post pics tomorrow.
 

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isupsyclone said:
I've got two or three no-day/date 6106s. They're the real deal and one of the nicer looking 6106s. I'll try to post pics tomorrow.
Very interesting! I wonder if Seiko also used other day/date calibers in no day/no date displays?

Anything is possible since I have a genuine quartz Seiko 5 :-\
 

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This is the first Seiko I completely tore down and rebuilt, my "training ground" if you will.
I bought it to use for parts but fell in love with the simple elegance of it and decided to keep it whole.
No day or date 6106-7039 from May 1968. Bump it and it starts to run.
The "automatic" and "17 jewels" are faded because I foolishly used windex to try and clean the dial.
 

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This blows my mind a little- that Seiko would include superflous features in a caliber instead of just leaving them out from the design level and calling it a difference caliber. I want to believe they left some semblance of order by maintaining the same parts that a 6106 has, only leaving off the day and date dials. May ask of the no-calendar 6106 owners out there- what happens when you push the crown in beyond the neutral position- is this even possible in your examples?
 

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Here are three no-day/date 6106s that I have. There are two -8069s, one from May of 1968 marked Water Proof on the back. The other -8069 is from September 1969 and is marked Water Resist. The -8069s have dials that are marked 8609T. The -7039 is from May 1968, designated Water Proof on the back and has a dial marked 7609T.

As for the crown action, when pushing the crowns on the -8069s they will depress slightly and spring back but I feel no click. The -7039 will click once however before springing back.

I, too, have always wondered if Seiko put the day/date wheels on these or if they left them off.
 

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Hi,

I am really glad that I found that post - I have one of those rare Seikos, too.

From my late father in law I received his old Seiko 6106 7039 which was built in May 68. They lived in Stamford Conn. near NY City by then.

The watch only has three hands, but does not show neither day nor date.

I did some research about this Seiko movement and found thousands of pics, but all with day/date ... till I found this thread.

The watch gains about two minutes a day so I will try to find someone here in Germany do to a proper service.

Pictures will follow.

Rigas
 

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i gotta say that it sure is strange looking at a seiko without a day or date. i take it for granted that they have at least the date on the dial. i never really noticed that i haven't noticed before.....if that makes sense.
 

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I brought my 6106 7039 to our local Grand Seiko store (till this week I did not know that GS made it to Germany ...) . They will clean and service the movement; it will be about €130 and will take a few weeks.

Rigas
 

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Great!
FYI, the Store did only open on 17th of July, so how could you know... ;) :)
 

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What's the value of one of these rare ones with no date/day? I just found one and haven't been able to figure out whether to restore it or not. Also how do you check the day it was made?
 

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Back from the service; watch in great condition considering the fact that it has been worn more or less daily for almost 50 years ....

I only forgot to ask the watchmaker about the day/date wheels - whether there are any or not :sleep:
 

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