Serviced Vintage 1961's JAPAN KING SEIKO FIRST MODEL J14102E 25J Hand-winding.

Serviced Vintage 1961's. JAPAN KING SEIKO FIRST MODEL J14102E 25Jewels Hand-winding.

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

Item description

Movement :

• Pet name : KING SEIKO (FIRST MODEL) .
• Caliber number : ＫＳ.
• Movement : Hand-winding.
• Beat rate : 18000bph.
• Year of manufacture start : 1961's.
• Factory : Kameido.

Externals :

• Serial number : D215495.
• Dial number : JAPAN KSJ14S-438-E.
• Glass : Acrylic.
• Case size : About 34.5mm.
• 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 September 2026.
  The movement has been cleaned and oiled, so it works fine.

Key Features

The Historical Genesis of King Luxury (1961): Debuted in **1961**—a monumental turning point in Japanese horological history—the **King First Generation** reference **J14102E** was Kameido's (Daini Seikosha) direct answer to Suwa Seikosha's Grand introduced a year prior. Created to establish internal rivalry and drive uncompromising accuracy, this legendary reference launched the historic ""KS"" line, setting the standard for Japanese high-grade luxury hand-wound watchmaking.

The Over-Engineered 25-Jewel Manual-Wind Caliber Heart: Powering this historic flagship is the elevated **25-jewel manual-wind movement** (derived from the Cronos base architecture). Operating at **18,000 vibrations per hour (vph)**, it features Seiko’s proprietary **Diashock** anti-shock protection system. Engineered with a lavish **25-jewel specification** to minimize gear-train friction across every critical pivot, this movement delivers exceptional chronometric stability, long power reserve, and a satisfyingly smooth tactile manual-winding action.

Architectural ""J14102E"" Heavy-Lug Case Geometry: The reference **J14102E** is globally revered among vintage collectors for its distinctive, commanding case architecture. Available in solid stainless steel or heavy 14K gold-filled options, it features thick, sharp-faceted **""thick-style"" dress lugs** and a clean, slim bezel profile. This muscular yet refined geometry creates a bold wrist presence that glides effortlessly under formal attire.

Immaculate Non-Date Dial Balance and Carved Typography: The dial of the **J14102E** is a study in early-1960s visual purity, set against a radiant silver sunburst canvas free from calendar clutter. It displays **hand-applied, multifaceted rectangular block hour markers** (with double-width indices at 12 o'clock) paired with razor-sharp, polished dauphine hands. The dial is proudly adorned with the iconic applied or carved **""KING SEIKO""** script and the special star symbol above 6 o'clock indicating solid SD (Special Dial) hour markers.

The Sovereign Gold KS Crest Medallion Heritage: The ultimate hallmark of this 1961 treasure sits proudly on the case back: the iconic, **solid gold-embossed King shield medallion** (or deeply stamped KS crest). This emblem historically certified its elite factory status and supreme hand-regulated precision. Standing as the foundational forefather of all King models that followed, the J14102E 25-jewel first generation remains an indispensable, top-tier investment-grade centerpiece for serious horological purists worldwide.

For more information, please look at the pictures.

Notes

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