Vintage Seikomatic J13060 Self Dater 39 Jewel 1960s SERVICED

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