Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)
Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)
Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)
Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)
Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)
Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)
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Birthday Watch January 1977! Seiko 4623-8010 Type II JDM Quartz Watch (OH)

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Make: Seiko
Type: Analog Quartz
Model: Quartz Type II
Year of Production: January 1977
Movement: 4623 Quartz
Hand and Dial: 3D Baton Indices and Dauphine Hands
Width: 36.5mm
Lug to Lug Height: 41.5mm
Thickness: 12mm
Lug Width: 18mm
Strap: High-Quality After Market Vintage SS Shark-Mesh Bracelet
Pouch / Box: Brand-New EVA Type Zipper Pouch


Introduced in December 1969, the Seiko Quartz Astron is often credited as the world's first commercially available quartz wristwatch. Quartz watches use a quartz crystal oscillator to keep time, which is much more accurate than the traditional mechanical movements used in wristwatches at the time.

The quartz movement in the Astron was incredibly precise, with an accuracy of within 5 seconds per month, far superior to mechanical watches of the era.

The introduction of the Seiko Quartz Astron had a profound impact on the watch industry. It marked the beginning of the Quartz Revolution that led to the decline of traditional mechanical watches in the market and the rise of more accurate and affordable quartz timepieces.

Seiko's Quartz Astron was showcased at the Baselworld watch fair in Switzerland in 1970, where it received international attention and acclaim because this watch change horology history forever.

Seiko introduced the Type II quartz series circa 1976 as a supposed entry level quartz movement but its quality had surpassed its price range, thus the market responded and made the Type II series the Seiko watch to own reminiscent of the Casio G-Shock craze of the 90s.

For Seiko Collectors and Vintage fans, this is a Seiko Type II 4623-8010 which is one of the most sort after Seiko models; and its silver dial, 3D silver baton indices and hands add class. This is a super scarce and highly sort-after Collectible timepiece.

This timepiece was given a thorough servicing, and its dial was meticulously cleaned (albeit certain miniscule scratchers and patina can still be seen at the 12H to 2H position), and its battery replaced on 12 September 2023. It should be able to operate unhindered for the next few years thereby providing the owner peace of mind.

This stylish shaped silver case was also given a good clean and rub while maintaining its sharp lines and sexy curves. Most imperfections were removed without compromising the case shape. The crystal is brand new and was given a good rub as well.

The crown is located at its traditional 3H position and is easily accessible.

The case width and height are approximately 36.5mm (without crown) and 41.5mm respectively. The lug width is 18mm and the bracelet can accommodate wrists up to 20cm; hence, this watch is suitable for men and the modern women.

The bracelet is a high quality vintage SS Shark Mesh bracelet that marries extremely well to this timepiece. The bracelet was thoroughly clean via ultrasonic immersion and was given a good polish afterwards to suit the same tone as the silver case. 

To the best of our knowledge and expertise when overhauling the timepiece, the watch is 100% original Seiko components from this particular watch. No parts were replaced with aftermarket parts or modified thereby it is considered in near MINT condition.

Even though the seals and gaskets are present / replaced, this timepiece has not been water-resistant tested due to its age.

The pictures provided show the watch’s case in excellent condition and well maintained. The only drawback is the lack of documentation and original box. A nice purposeful carrying case or box will be provided instead.

Bear in mind that this watch has seen many of the previous owners’ ups and downs in life, and should be cherished and well taken care of for the next generation to savour such engineering beauty.

Yes, there are many other same models in the market, but almost all are not in the same quality condition and as well maintained as what you see here. So, it is a no-brainer that this one-of-a-kind timepiece will make an extremely beautiful birthday present for that special someone born in January 1977!

This is a highly sort-after Collectible January 1977 Seiko Type II 4623-8010 in stunning condition; so, be unique and wear something that is almost impossible to source.

This is a must-have for the Seiko die-hard fan, and in fact, any serious watch collector!