Seiko caliber VK63 SII

Hattori SII Caliber VK63

Seiko caliber VK63 SII

ManufacturerHattori aka Seiko Instruments Inc. (SII)
Caliber NumberVK63, VK63A
Movement TypeQuartz (mecaquartz)
Lignes13 1/2”’
Diameter
30.80mm x 29.10mm
Casing Diameter
29.10mm
Height5.10mm
Jewels
0
Battery Cell Number394
Frequency32,768
Quartz TypeTuning fork type quartz crystal
Driver
2 pole stepping motor
Stem351177 / tap 10 or 351892 / tap 11
Hand Sizes1.50mm / .90mm / .32mm
FunctionsHours, minutes, small seconds, date, central chronograph seconds, 60 minute counter, 24 hour indicator
Country of ManufactureJapan (assembled)
Known Models Mercer Brigadier (Add your watch to the comments below…)

The SII (Seiko Instruments) caliber VK63 is part of the hybrid mechanical quartz (mechaquartz) movement line. It is a chronograph movement that uses quartz technology for the main functions of the watch and a mechanical module for operating the chronograph. You might find this caliber VK63 listed as being produced by SII aka Hattori aka TMI (Time Module Inc) aka Seiko Instruments Inc. Learn more about the different names here. Other calibers with the same base movement are VK67 and VK83.

Seiko 6T63 VS VK63:

The SII caliber VK63 is essentially the same as the Seiko 6T63. The main difference is that the VK63 is produced for non-Seiko watch brands under Seiko Instruments. The 6T63 is used in Seiko branded watches such as the SSB025.

VK63 / VK63A / VK63B / VK63C:

The general/base caliber number is VK63, from the VK family of movements, with VK63A being the first version. The subsequent letter variations indicate evolution in the movements development. As of this post, only the VK63A exists, but if there are any upgrades or changes to the movement in the future, the letter will change to VK63B, VK63C, and so on.

Accuracy:

Time Module/Seiko states that the expected accuracy of this movement is less than +/- 20 seconds per month at normal temps.

Expected Battery Life:

The battery life is about 3 years with normal operation. Using the chronograph will drain the battery faster. The 3 years estimate is based on using the chronograph for about 60 minutes per day. If you don’t use the chronograph, you may see a longer battery life. If you use the chrono frequently, you will need to change the battery sooner than 3 years.

Changing the Battery:

The VK63 takes a battery cell number 394 (SR936SW). After installing a fresh battery cell, remember to reset the circuit by touching the AC terminal of the circuit block (look for an arrow labeled AC pointing to a hole) and the switch spring with your tweezers.


Replacement Prices:

At the time of this post, replacement prices for the VK63 were found online in the range of about $19.95 to $27.95 USD.

Dial Side Technical Drawing:

Additional Resources:


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What is a Meca-Quartz Movement? Watch Movement | CaliberCorner.com
4 years ago

[…] Seiko SII VK63 […]

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"Undone" watches
3 years ago

[…] apparently, unless the Seiko VK61 is notably better than the VK63 that's showing on CaliberCorner.Hattori SII Caliber VK63 Watch Movement | CaliberCorner.com And it is also said, "go not to the Elves for counsel, for they will say no and yes." — […]

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2 years ago

[…] Learn more about the different names here. Other calibers with the same base movement are VK61, VK63, VK67, VK68, VK73, and […]

norman duddy
norman duddy
2 years ago

i have the pulsar pu2011 model using the VK64-x001 caliber but cannot find the stem if
anyone can help..
ive tried a few uk suppliers and ebay but no luck so wondering if its been modified with a new number

norman duddy
norman duddy
2 years ago
Reply to  Caliber Corner

cheers

norman duddy
norman duddy
2 years ago

First time on here so hoping to join in with exisitng members.
I am always interested in meeting other watch makers to pass on info tips experience ect..
I deal in sales repairs of a few makes mainly omega tag seiko/+ cartier

Cheers norman United Kingdom

norman duddy
norman duddy
2 years ago
Reply to  Caliber Corner

cheers

D.V.
D.V.
2 years ago

If this is equivalent to 6T3 (like in SSB025) than according to the manual the frequency of crystal oscilator is 32,768Hz,

Scott Taylor-Harvey
Scott Taylor-Harvey
1 year ago

True or false. I bought a Pagani Designs “Daytona” homage that uses the VK64 movement. The supplied hands are very hard to see against the white dial and I would love to change them out. Seems that the hour and minute hands are pretty standard Seiko fare, but the sweeper is not. Anyone know of a source for these as I am told that once the sweep second hand is removed, it cannot be reused.… Read more »

Scott Taylor-Harvey
Scott Taylor-Harvey
1 year ago

My bad, it uses the VK63 movement

Jack Ford
Jack Ford
1 year ago

I have the same watch and I’m looking for the same black hand set for the same reason. Please advise if you have any luck.

Freedman
Freedman
1 year ago

Removing the sweeping second hand cannot be reused on many chronographs because it’s so tight to be able to handle the motion from swinging back to zero Removing and replacing can widen the hole. I haven’t heard it with the VKs but you can always try to by a cheap replacement and play with it to test. This is a good idea to do first before working on your watch. You’ll need a 0.32mm hand… Read more »

Leon O'King
Leon O'King
1 year ago
Reply to  Freedman

Ive had success painting hands before, great idea, just don’t overdo it or you could see textured streaks. Hobby paint aka model car paint is what I used.

Jack Ford
Jack Ford
1 year ago
Reply to  Freedman

Can you explain the painting process in more detail? Thanks

Joseph P Smetona
Joseph P Smetona
10 months ago
Reply to  Jack Ford

Jack…. please see my two posts above. Thanks.

Joseph P Smetona
Joseph P Smetona
10 months ago
Reply to  Freedman

I use an airbrush with the Testors gloss model paid in either white or black or another color. Come to think of it a flat paint might work well. I’d use a couple of thin sheets of paper and slit them to slide into place to protect the other hands. According to the other posts, you don’t want to remove the second hand. Also, I think I would paint the second had a bright red… Read more »

Joseph P Smetona
Joseph P Smetona
10 months ago

Here’s a photo of the Heuer Monza 150.501 that I bought new in 1977. Note the colors of the hands.

Screenshot from 2020-05-01 19-05-19.png
Joseph P Smetona
Joseph P Smetona
10 months ago

Note. It might be much easier to leave a space before painting the hands, close to the post as in the Heuer, or paint the center section black or white to blend in with the dial color. Doing this would make it much easier to paint the hands when you don’t want to remove the second hand since the second hand is on the top. refer to my Heuer Monza 150.501 photo below.

Screenshot from 2020-05-01 19-05-19.png
max fleury
max fleury
1 year ago

Hello, what would add a swan neck on this movement, please ?

Alohajoe
Alohajoe
8 months ago
Reply to  max fleury

On a quartz? What the…

Craig
Craig
1 year ago

If I wanted to convert a watch with an S11 to a mechanical movement and use the same dial are there any options?

Craig
Craig
1 year ago
Reply to  Craig

It’s VK63A and would like to keep the chronograph function. I can deal with loading the date.

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1 year ago

[…] experience is very stable. For a $325 chronograph watch, the choices are limited to quartz, meca-quartz and the Seagull ST19. I would take this movement over an ST19 any day of the […]

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10 months ago

[…] el interior del reloj encontramos el popular calibre mecaquartz de SEIKO VK63. Representa una gran opción para los cronógrafos de las micro marcas, aportando la sensación y […]

Jack Ford
Jack Ford
8 months ago

I have 2 Chinese Pagani Daytona Quartz watches – don’t ask me why, which have the VK63 movement. Maybe I broke the winding stem housing on one of them, because the stem slides in and out but will not engage the hands even when in the correct position, the stem doesn’t snap back into position when reinserted, and the hands aren’t moving even though the battery is fine. First, what is the the correct way… Read more »

Alohajoe
Alohajoe
8 months ago
Reply to  Jack Ford

The correct way to remove the stem is push your tweezers in the hole where it says push on the movement. If you forced it maybe the setting lever got messed up. I wonder what would happen if you carefully press that post and try to reinsert the stem. Did you try anything like that? How did you get the stem out?

Jack Ford
Jack Ford
8 months ago
Reply to  Alohajoe

The stem pulls right out when I turn and open the crown.

Alohajoe
Alohajoe
8 months ago
Reply to  Jack Ford

Sorry I don’t think I understand. Were you trying to remove the crown before? What were you trying to push on the movement, the AC reset after a battery install? I’m asking because you asked how to correctly remove the crown. What were the steps that happened before the crown came all the way out?

Jack Ford
Jack Ford
8 months ago
Reply to  Alohajoe

Yes. I was trying to remove the crown so I could remove the movement to replace the crystal which shattered when I accidentally dropped the watch on my tile floor.

David
David
6 months ago

Anyone know the difference between calibre vk63 and calibre Vk63A ?

David
David
6 months ago
Reply to  Caliber Corner

Sorry I must be missing something, l still can’t find out what the difference is between VK63 and Vk63A … sorry

Briantllb
Briantllb
4 months ago

VK63 hand set HB301.5

Valentin
Valentin
4 months ago

Hi i have a watch whith the vk63 movment and the cronograph function stoped working do someone know if this can be repair?

Larry Berg
Larry Berg
3 months ago

Ferrari Scuderia 830055 uses this movement.

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[…] Undone Astro Boy is a themed watch that has a Seiko VK63 meca-quartz chronograph movement, interesting materials like forged carbon and a transparent dial, interesting […]

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[…] 1963 equipa el calibre VK63 de SEIKO, que es un movimiento meca-quartz. El calibre base es de cuarzo, pero superpuesto con un módulo […]

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