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Forum Home > Parts Info, Tech Tips and Tinkering > Gap between tachymeter ring and dial

CA

Posts: 58

Hi

I have noticed a gap between the tachymeter ring and the dial on my new 7a38-7060.

Can this be fixed or better left as is?


October 2, 2015 at 1:14 PM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 12355

It can very easily be fixed Claus. There are various pips moulded on the underside of the Tachymeter ring which are designed to engage cut-outs around the perimeter of the dial plate, thereby ensuring proper alignment. Your Tachymeter is misaligned slightly. The '60' should be immediately above the centre of the 12 o'clock baton. You need to remove the dial / movement. You can then rotate the Tachymeter ring a couple of degrees (it is sandwiched between the bezel and case, but still floats freely).

October 2, 2015 at 1:49 PM Flag Quote & Reply

CA

Posts: 58

Ok, thanks a lot.


--


October 2, 2015 at 2:33 PM Flag Quote & Reply

CA

Posts: 58

Hi Paul

Before I proceed can I just clarify the steps (I dont want to break anything like I've done in the past :( )

1. Open caseback

2. Press down the crown-release button (and withdraw stem)

3. Pull out movement + dial

4. Re-align the tachy ring

5. Re-assemble

What is the best order to re-assemble the watch with mimimum risk of damaging the hands like I did the last time. :roll:

Do you know if there is a video of the process somewhere??

Thanks

Claus.


October 3, 2015 at 4:09 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 12355

Claus. Re-assemble in reverse order. The only additional precaution I take, when removing a dial / movement from a case, is that before removing the crown / stem, I set all the main hands to 12 o'clock - midday rather than midnight (and sub-dial hands to zero). That way, you know where all the hands are (in relation to the underneath of the movement) so there's less chance of one of them catching on the Tachymeter ring and getting bent.

October 3, 2015 at 4:31 AM Flag Quote & Reply

CA

Posts: 58

CA at October 2, 2015 at 1:14 PM

Hi

I have noticed a gap between the tachymeter ring and the dial on my new 7a38-7060.

Can this be fixed or better left as is?


Ok, managed to re-allign the tachymeter bezel, but now the chronograph is not resetting to 0 :(

Yes, I have checked the tension spring is in the correct position, but the seconds hand always resets to 59 and the 1/10 sec on 9/10...?

Apologies if this has been explained before on this forum, but cant find it...


October 4, 2015 at 8:12 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 12355

Basic question: Have you re-set the chrono' hands back to Zero since you replaced the movement ? :/

October 4, 2015 at 8:39 AM Flag Quote & Reply

CA

Posts: 58

CA at October 4, 2015 at 8:12 AM

CA at October 2, 2015 at 1:14 PM

Hi

I have noticed a gap between the tachymeter ring and the dial on my new 7a38-7060.

Can this be fixed or better left as is?


Ok, managed to re-allign the tachymeter bezel, but now the chronograph is not resetting to 0 :(

Yes, I have checked the tension spring is in the correct position, but the seconds hand always resets to 59 and the 1/10 sec on 9/10...?

Apologies if this has been explained before on this forum, but cant find it...


yes

--


October 4, 2015 at 9:10 AM Flag Quote & Reply

CA

Posts: 58

Seiko7A38 at October 4, 2015 at 8:39 AM

Basic question: Have you re-set the chrono' hands back to Zero since you replaced the movement ? :/

OK, I've managed to re-calibrate so it all resets to 0, but the right hand button to calibrate the minutes is not doing anything so probable need a new clip


--


October 4, 2015 at 9:47 AM Flag Quote & Reply

CA

Posts: 58

CA at October 4, 2015 at 9:10 AM

CA at October 4, 2015 at 8:12 AM

CA at October 2, 2015 at 1:14 PM

Hi

I have noticed a gap between the tachymeter ring and the dial on my new 7a38-7060.

Can this be fixed or better left as is?


Ok, managed to re-allign the tachymeter bezel, but now the chronograph is not resetting to 0 :(

Yes, I have checked the tension spring is in the correct position, but the seconds hand always resets to 59 and the 1/10 sec on 9/10...?

Apologies if this has been explained before on this forum, but cant find it...


yes

sorry i meant the top left button

--


October 4, 2015 at 9:48 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 12355

Claus. Will you PLEASE STOP re-quoting yourself in every post - it's competely unnecessary ! :o

October 4, 2015 at 9:58 AM Flag Quote & Reply

CA

Posts: 58

CA at October 4, 2015 at 9:48 AM

CA at October 4, 2015 at 9:10 AM

CA at October 4, 2015 at 8:12 AM

CA at October 2, 2015 at 1:14 PM

Hi

I have noticed a gap between the tachymeter ring and the dial on my new 7a38-7060.

Can this be fixed or better left as is?


Ok, managed to re-allign the tachymeter bezel, but now the chronograph is not resetting to 0 :(

Yes, I have checked the tension spring is in the correct position, but the seconds hand always resets to 59 and the 1/10 sec on 9/10...?

Apologies if this has been explained before on this forum, but cant find it...


yes

sorry i meant the top left button

OK, now all working wit one little side effect. Pressing the crown starts the chronograph :/

--


October 4, 2015 at 10:01 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 12355

O.K. Thassit ! 

October 4, 2015 at 10:19 AM Flag Quote & Reply

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