Serviced Vintage 1962 JAPAN SEIKO SPORTSMATIC J13045 17Jewels Automatic.

Welcome to my auction!
I am Japanese who live in Tokyo.

Item description

It's a SEIKO Automatic Watch, SPORTSMATIC J13045 17Jewels .
It's in good used condition.
It's difficult to find this valuable watch in such a good condition. Highly recommended for SEIKO collectors!
Movement :
  • Pet name : SPORTSMATIC .
  • Caliber number : 2451.
  • Movement : Automatic.
  • Beat rate : 18000bph.
  • Year of manufacture start : 1961's.
  • Factory : Suwa.
Externals :
  • Serial number : 2711393.
  • Dial number : JAPAN MADE SMAJ13H260ED.
  • Glass : Acrylic.
  • Case size : About 36.7mm.
  • Lug width : 18mm.
  • Band : New Leather Strap of SEIKO original.
Condition :
  • Used, it runs well.
  • The day difference time of an used watch is about +-1 minute / day.
  • Overhaul service in June 2026.
    The movement has been cleaned and oiled, so it works fine.
Key Features
  • The Dawn of Everyday Automatic Accessibility (1962): In **1962**, the **Seiko Sportsmatic** arrived as a revolutionary mechanical milestone, transforming the automatic watch from an unattainable luxury into an accessible daily reality for Japan's rising post-war workforce. Carrying the historic reference **J13045**, this legendary timepiece was produced by the **Suwa Seikosha** factory during the early, vibrant years of the Showa economic boom. As the direct ideological and technical ancestor to the world-famous ""Seiko 5"" line, it represents the foundational blueprint of affordable, rugged mechanical luxury.
  • The Bulletproof 17-Jewel Automatic Engine: This watch is powered by a foundational **17-jewel automatic movement** (derived from the historic Gyro Marvel and early Seikomatic lineages) operating at a classic **18,000 vibrations per hour (vph)**. In **1962**, this **17-jewel specification** provided the perfect balance of friction reduction and robust structural simplicity. Utilizing an early, highly efficient winding rotor system, this movement was engineered to deliver unrelenting daily reliability for the active modern gentleman without the need for manual interaction.
  • Architectural ""J-Prefix"" Recessed Crown Case Geometry: The reference **J13045** features the prestigious **""J"" prefix**, identifying it as a highly coveted, authentic early-production run from the start of the decade. The stainless steel or gold-plated case showcases smooth, sweeping circular contours and elegant tapered lugs. To proudly signal to the world that manual winding was a thing of the past, the **time-setting crown is entirely recessed at the 4 o'clock position**, maintaining a perfectly sleek, aerodynamic silhouette that sat flush against the wrist.
  • Absolute Symmetrical Purity of the Non-Date Dial: By completely omitting the constraints of a date window, the dial of the **J13045** achieves a level of **immaculate visual balance and serene symmetry** that later calendar models could never replicate. The radiant silver sunburst canvas is adorned with **hand-applied, faceted baton indices** and sharp Dauphine hands that capture light with beautiful vintage warmth. The stylized, flowing **cursive ""Sportsmatic"" script logo** below 12 o'clock remains a prestigious hallmark of pre-mid-60s design pride.
  • A Landmark Cornerstone of Suwa's Automatic Heritage: Manufactured in the milestone year of **1962**, the J13045 stands as an investment-grade treasure for purist collectors of early vintage Seiko. It represents the historic historical intersection where high-efficiency self-winding technology moved from elite chronometer-tier watches into everyday urban lifestyles. Complete with an early, crisp production etching on its snap-on reverse, it stands as a profound testament to an era when Japan began its unstoppable ascent to global horological dominance.
    • For more information, please look at the pictures.
    Notes
    • Before buying.
      The vintage watches we sell are inspected and adjusted so they work fine. However, since it is an vintage watch, Please purchase on the assumption that it will be repaired.

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