Vintage Seikomatic J13060 — A Landmark of Japanese Horology

Vintage Seikomatic J13060 is one of the most historically significant automatic watches ever produced by Seiko. Introduced in the early 1960s, this exceptional timepiece represents the pinnacle of Seiko's ambition — a watch that could rival the finest Swiss movements of its era. Powered by the prestigious Caliber Seikosha 395, this was Seiko's flagship automatic movement, boasting an extraordinary 39 jewels, a self-winding rotor, hacking seconds, and a quick-set date function — features that were genuinely groundbreaking for a Japanese watch of this period.

Owning a Seikomatic J13060 is owning a piece of watchmaking history. These were produced in very limited numbers between approximately 1961 and 1963, making surviving examples increasingly rare and highly sought after by serious collectors worldwide.

After testing the watch was 13 seconds fast over a 24-hour period. It is normal for watches to run slightly fast immediately after a service and then gradually slow down over the following months and years. 

Service: This Watch was professionally serviced by my expert watchmaker and has photo evidence of this. Also, in the pictures you can see the results from the time graph machine. Serviced March 2026

Movement

• Caliber: Seikosha 395 — Seiko's top-grade automatic of the early 1960s
• Jewels: 39 jewels
• Functions: Self-winding, hacking seconds, quick-set date (Self Dater)
• Condition: Professionally serviced 
• Power Reserve: At least 24 hours - ( Approximately 42 hour power reserve when tested)

Case

• Material: Stainless steel
• Diameter: 37.1mm
• Lug to Lug: 44.8mm
• Thickness: ~12mm
• Lug width: 18mm
• Case back: Screw-back with Dolphin and Crown Logo

Crystal: Original Acrylic Crystal, generally scratch free

Dial: Excellent Condition, classic silver sunburst finish, check photos and video

Strap: Comes on a Dark Brown 18mm Crocodile Imprinted Cow Leather Strap with a Stainless Steel Buckle - Will fit up to 7.6'' Wrist

To Set the Date: Pull the crown out one click and turn the crown anticlockwise. Best at noon (NOT MIDNIGHT WHEN THE DAY/DATE IS CHANGING). Do NOT roll the crown fast. Always roll softly and slowly.

To Set the Time: Pull the crown out 2 clicks and roll the crown slowly to the time desired, softly push the crown back in and it will run.

Please follow the Day/Date and time setting instruction exactly and if you don't know how to operate these functions visit a professional watchmaker or message me directly first.

If you don't know how to operate the Day/Date function it will break the watch

If you return the watch with a broken Day/Date function, there will be a 25% restocking fee

Timepiece may have hair scratches

Vintage watches are not waterproof

The second hand may not always line up with the second track on vintage watches

Measurements are approximate

Colours are approximate depending on light, monitor settings, time of the day or people's perception of colours, backgrounds and camera angles

Shipping

Free UK delivery via Royal Mail, NEXT DAY DELIVERY!

For Europe, delivery typically takes 3-5 working days and costs £20.

Worldwide shipping usually arrives within 5-7 working days at a cost of £25

USA - Tariff and Shipping Notice

Due to recent changes in US law, all orders shipped to the USA include an estimated shipping tariff and handling fee within our flat rate shipping fee of £70, ensuring no unexpected charges upon delivery. Delivery times may vary due to customs processing and local postal services.

For all other countries, customers are responsible for any customs fees or import duties imposed by their government.