6309 7548 Date Dial recognition

[Fergus]

The date dial on many Seiko's is unmarked with a reference number. Unlike the day dial with star disc which is clearly marked.

While assembling a spare 7548 movement, I decided to impart some knowledge on how to tell, with ease, which is for which model by feature recognition. The easiest and simplest method being to look at the number 7 in relationship to adjacent gear teeth.

Note: Although I show a black figure on white (silver) dial and a white figures on black dial, the colour combination is irrelevant.

Picture 1. The top horizontal stroke of the '7' aligns precisely with the centre line of an adjacent tooth. These dials are for movements where the date window and crown are both at the 3 o'clock position.

Seiko parts reference numbers therefore apply,
801601
801604



Picture 2. The top horizontal stroke of the '7' aligns precisely mid way between two adjacent teeth. These dials are for movements where the date window is at 3 o'clock and the crown at 4 o'clock positions.

Seiko parts reference numbers therefore apply,
801602
801610

[pip]

Excellent knowledge, thanks for sharing it!

[HiBeat]

Thank you Don.   Presented very clearly.  Much appreciated!

[jay48]

Great write up, making a note of this! Thanks!

[jringo8769]

well thank you for this great info...
we all truly needed it...
God Bless,John

[time4seiko]

Thanks for taking the time to research and post. Very useful😃👍

[lewie]

That’s great info I have a few all mixed up

[longbike]

Collectors should .... Print This Out For ......  References and Store it away.
Copy it Down and store it away so when other ask we have in on hand to help along.

Maybe some one can put it int ... A Data Reference Place for others to use also.
You know .... Partially Re-Assembling a Watch and the ..... Wheels Do Not Comply .......  .
Imagine all these ..... Wheels we Accumulate and have a .... "Hard time distinguishing them ".

This is good for any ....... Beginner also to save.
Louis

[donciccio]

Mar 28, 2020 18:46:03 GMT -8 longbike said:

Collectors should .... Print This Out For ......  References and Store it away.
Copy it Down and store it away so when other ask we have in on hand to help along.

Maybe some one can put it int ... A Data Reference Place for others to use also.
You know .... Partially Re-Assembling a Watch and the ..... Wheels Do Not Comply .......  .
Imagine all these ..... Wheels we Accumulate and have a .... "Hard time distinguishing them ".

This is good for any ....... Beginner also to save.
Louis

Sometimes I read your posts with Captain Kirk's voice in mind.

With that being said I agree with your comment 100%.

[longbike]

Mar 28, 2020 18:59:01 GMT -8 donciccio said:

Mar 28, 2020 18:46:03 GMT -8 longbike said:

Collectors should .... Print This Out For ......  References and Store it away.
Copy it Down and store it away so when other ask we have in on hand to help along.

Maybe some one can put it int ... A Data Reference Place for others to use also.
You know .... Partially Re-Assembling a Watch and the ..... Wheels Do Not Comply .......  .
Imagine all these ..... Wheels we Accumulate and have a .... "Hard time distinguishing them ".

This is good for any ....... Beginner also to save.
Louis

Sometimes I read your posts with Captain Kirk's voice in mind.

With that being said I agree with your comment 100%.

                         Thank you Sir ...... It is how I was raised to be the way I am and I never regretted it.
                          Louis

[datilderek]

Awesome!  This is exactly what I needed to know to get the date on my old Pulsar diver aligned in the window.  The guy I bought it from replaced the original movement, and the day/date misalignment is driving me nuts.