Collectible! Seiko Unique U14005 Seikosha 15 Jewel, Mechanical Watch (OH)

Make: Seiko
Type: Mechanical
Model: Unique
Year of Production: c1960s
Movement: U14005
BPH: 18,000
Number of Jewels: 15
Hand and Dial: 3D 15K Solid-Gold Indices and Sword Hands
Width: 33.5mm
Lug to Lug Height: 37mm
Thickness: 8.7mm
Lug Width: 16mm
Bracelet: Brand-New Hi-Quality Genuine Leather Strap with Silver Buckle
Pouch / Box: Brand-New EVA Type Zipper Pouch

Prior to the debut of the Seiko Super and Seiko Unique, all Seiko watches had a mini-second hand, hence a separate mini-movement within the main movement that powered the second hand. It seems a separate secondhand movement was considered a much simpler and more effective system than to incorporate the second hand with the minute and hour hand. But that all changed circa 1950 when Seiko officially launched the Seiko Super 15J (SUWA) and the Seiko Unique 15J (DAINI).

For Seiko Collectors and Vintage fans, this is a gorgeous Seiko Unique, Model U14005 15 Jewel 15K Gold-Filled Mechanical Watch in excellent condition.

This very rare Seiko Unique vintage has a pearl white dial that has gracefully and uniformly aged to buttery-beige, compliments of specks of Patina (AKA Wabi Sabi - the "Imperfect Perfections / the Perfect Imperfections") forming throughout the entire dial. This marries beautifully with the 15K gold indices and hands. The result - the "Perfect Patina" as it is called by watch collectors that is extremely pleasing to the eye.

Careful cleaning was performed on the 15K solid gold Indices and hands that brought out their immaculate condition, and the crystal glass is also in excellent condition.

The classical designed case was buffed to remove age marks and miniscule hairline scratches caused by aging and is in stunning condition albeit scratch marks do remain.

The crown is located at the traditional 3H positions and tucked away nicely to prevent damage or snags.

The movement was carefully stripped and meticulously cleaned via ultrasonic immersion, oiled, re-assembled and calibrated on 23 March 2026; hence it underwent an overhaul and not a general servicing. It should be able to operate unhindered until the next servicing thereby providing the owner peace of mind.

It is equipped with 15 Jewels whilst operating at 18,000 BPH. The time-grapher shows excellent readings of +1 second and amplitude of 237! Such readings are exceptional even by brand new modern automatic watch standards whereby the accepted tolerance is -20 to +40 seconds a day! This is a testament to the quality, the meticulous care provided over the years, and of course the painstaking calibration conducted.

The case width and height are approximately 33.5mm (without crown) and 37mm respectively. The lug width is 16mm and the strap can accommodate wrists up to 20cm; thus, this watch is suitable for men and women.

A brand new sandy-brown vintage design genuine leather strap comes with a silver buckle that enhances the watch dial and 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.

Due to its age, this timepiece has not been water-resistant tested.

The pictures provided show the watch in pristine condition (no dents and major scratches), and the movement within squeaky clean and well maintained. It has also been demagnetised to improve parts reliability, minimise wear + tear, and improve accuracy. The only drawback is the lack of documentation and original box. A nice purposeful carrying case or box will be provided.

Seldom can one find a vintage watch that offers this and more. Yes, there are many other same / similar models in the market, but none are as well-kept and maintained as what you see here, and with an attractive price to boot. So, it is a no-brainer that this one-of-a-kind watch will make an extremely beautiful birthday present for that special someone!

This is a Seiko Unique 15J Mechanical Watch in stunning condition with a beautiful vintage dial, movement, case, and immaculate 15K solid gold indices and hands; so, be "unique" (excuse the pun) and own a vintage watch that is almost impossible to source in such fine condition or purchase it for that special someone instead.