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The priceless value of Watches, brought to you by {name}


Masayuki Nakai

Introduction

The Seiko Prospex Diver’s 200m Automatic Ref. 6R35-00P0 (known internationally as SPB143J1) pays homage to Seiko’s very first dive watch, the legendary 1965 “62MAS.” Combining classic tool-watch aesthetics with modern engineering, this model features a robust stainless steel case, sapphire crystal, and Seiko’s reliable 6R35 automatic movement with an impressive 70-hour power reserve.

Historical & Collector Value

The 62MAS reissue series is among the most sought-after modern Prospex lines, blending Seiko’s pioneering dive heritage with contemporary craftsmanship. The SPB143J1 stands out for its perfect proportions (40.5 mm case), understated grey sunburst dial, and high-legibility markers — all hallmarks of the original 1965 diver.
With its “Made in Japan” engraving and serial number (0D0073), this example represents a high-quality domestic Japanese version, which collectors value for its superior finishing and precision.

Specifications
	•	Brand: Seiko
	•	Model: Prospex Diver’s 200m
	•	Reference number: 6R35-00P0 (SPB143J1 / SBDC101)
	•	Movement: Automatic (Cal. 6R35, 24 jewels, 70-hour power reserve)
	•	Case material: Stainless steel
	•	Bracelet: Stainless steel (original Seiko)
	•	Case diameter: Approx. 40.5 mm
	•	Dial color: Grey sunburst
	•	Crystal: Sapphire crystal with anti-reflective coating
	•	Bezel: Unidirectional rotating, black
	•	Water resistance: 200 meters (Diver’s)
	•	Country of manufacture: Japan
	•	Serial number: 0D0073
	•	Included: Original Seiko box, guarantee card, and papers

Condition

Excellent overall condition with minimal signs of wear. The dial, bezel, and hands are clean and intact. The movement runs accurately, and all functions (date, crown, and bezel rotation) operate smoothly.

Service History

All functions checked and confirmed working. The watch has been professionally inspected (OH済) and is ready for immediate use.

Shipping & Customs

The watch will be securely packed and shipped internationally with insurance and tracking.
Please note that import duties and taxes are the responsibility of the buyer.

Automatic - Stainless steel

Seiko - Prospex Diver - 6R35-00P0 - Men - 2020+ 

Watches

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Case diameter

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Extras

Limited edition

with manual in opened box

Period

2020-2025

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2020+

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Certification

No laboratory report

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Seiko - Prospex Diver - 6R35-00P0 - Men - 2020+

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