New Full-Set Seiko SPB143J1 62MAS Heritage Diver Prospex Automatic 200m Watch

Built on Legacy, Worn for Today

The Seiko SPB143J1 reinterprets Seiko’s very first 1965 diver with modern reliability and everyday wearability. A compact 40.5 mm case, legible charcoal dial, and the long-reserve 6R35 movement give you a classic tool-watch silhouette built for real life—desk to dock.

Get Noticed

Understated on purpose. The gray sunburst dial, vintage-right proportions, and crisp bezel speak softly but carry weight. It’s the kind of diver seasoned collectors respect—and everyone else just thinks looks great.

60-Day Defect Replacement Guarantee

If it arrives defective or stops within 60 days of delivery, we’ll replace it. No hassle.

Full Specifications

• Case: Stainless steel, 40.5 mm diameter × 13.2 mm thick; lug-to-lug 47.6 mm.

• Crystal: Curved sapphire with inner AR coating.

• Bezel: Unidirectional rotating diver’s bezel.

• Water Resistance: 200 m / 660 ft diver’s (screw-down crown, screw case back).

• Dial/Lume: Charcoal/gray with LumiBrite on hands, indices, and bezel pip.

• Movement: Seiko 6R35 automatic, hand-wind & hacking; ~70-hour power reserve; +25/-15 s/day; 24 jewels.

• Bracelet/Clasp: Stainless steel, 20 mm lug width; three-fold clasp with secure lock, push-button release, diver’s extender.

• MSRP (Seiko US): $1,200 USD.

Shipping & Handling

Fast, secure shipping. No signature confirmation required.

J1 vs. K1 — What It Means

Seiko uses J1 and K1 suffixes to indicate assembly market/markings (J1 typically “Japan,” K1 typically outside Japan). Quality, specs, and movements are the same; differences are usually case-back/dial text and market pricing. Neither is “fake,” and both are authentic Seiko.

Buy with Confidence – Register Your New Seiko

I work directly with a top Seiko distributor. After you receive your watch:

1. Visit Seiko’s official registration portal.

2. Enter the model number (on the hang tag).

3. Enter your 6-digit serial number (case back).

4. Enter your 8-character case-back code (e.g., “6R35-0xxx”).

5. Submit to receive a confirmation email verifying registration.

Note: Seiko’s manufacturer warranty applies only to authorized-dealer purchases. Grey-market purchases aren’t covered by Seiko’s warranty, but all watches we sell are brand new, authentic, and protected by our 60-day defect replacement guarantee.

About Me

A few years ago, I set out to buy my wife a special Christmas gift — a luxury watch that captured how much she meant to me. I didn’t expect that search to spark something deeper. What started as a simple gift turned into a full-blown fascination. I fell in love with the artistry, mechanics, and legacy behind great watches. Over time, that passion evolved into this business. Today, I handpick every watch you see — with the eye of a collector, not a bulk reseller.

When you buy from me, you’re not just buying a watch — you’re supporting a dream and becoming part of a story that started with love and turned into legacy.

Thanks for being here. Let’s keep time — beautifully.
Ryan Allen, Owner, Timeless Elegance, LLC.