High-Beat Precision: 1970 King Seiko KS Hi-Beat 36000 25 Jewels (Ref. 4502-7001 SGP Medallion)
This serviced Rare Vintage 1970 King Seiko Ref. 4502-7001 represents a historic pinnacle of Daini Seikosha's engineering, embodying the aggressive "Grammar of Design" philosophy. Driven by the legendary 25-jewel Caliber 4502 ultra-high frequency manual-winding movement, this masterpiece beats at a staggering 36,000 vibrations per hour. This caliber was built to compete at the highest levels of chronometer trials, offering a silky-smooth sweep and technical sophistication that rivaled Grand Seiko.
Having undergone a comprehensive service, the movement winds with crisp, tactile fluidity and operates with optimal high-frequency vigor. The original silver-white dial remains entirely untouched, developing a gentle, warm patina that reflects its authentic vintage journey. This natural aging lends an unmistakable charm to the face, while the sharp applied indices, gilded handset, and framed date display at 3 o'clock retain their executive presence.
The SGP case is beautifully preserved, retaining its original factory geometry with the powerful, sharp-edged lug lines of the 7001 profile. Unlike many gold-plated pieces of this era, the gold layers remain remarkably intact, providing a rich, warm canvas that captures light beautifully. A standout feature is the original King Seiko gold medallion on the caseback, which remains remarkably well-preserved. The watch head is factory-correct, keeping its original dial, crystal, case, crown, and medallion intact. It comes paired with a premium black leather strap.
Collectors fiercely pursue the 4502-7001 for its legendary 36,000 BPH hand-wound caliber, instant date change, and dominant role in the golden age of Japanese watchmaking. This 1970 specimen provides a perfect balance of raw technical sophistication and refined gold elegance.
šµ Price: $500 + $40 shipping (via USPS/Singapore Post)
š³ Payment via PayPal F&F or G&S, Payoneer or Wise
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