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Seiko Prospex SPB143

$ BudgetTrending Down$509.50

tldr; Reddit highly recommends the Seiko Prospex SPB143, praising it as a gorgeous and very well-regarded diver in the watch collecting community.

$509.50 on Amazon

Sentiment Breakdown

43%Positive
Positive
43%
Neutral
56%
Negative
1%
Based on 70 Reddit opinions

Strengths & Weaknesses

Each axis shows what % of Reddit comments are positive about that topic. Higher = more praise.

Key Features

  • Case Diameter: 41.7mm
  • Case Thickness: 12.3mm
  • Case Length: 49.5mm
  • Lug Width: 20mm
  • 🎯 Gorgeous in real life
  • ✨ Beautiful grey dial
  • 🎯 Very well regarded in the watch
  • 🏃 Good as a diver

Sentiment Over Time

0%25%50%75%100%May '25Jul '25Oct '25Dec '25Jan '2687% (May '25) - 14.6 comments100% (Jun '25) - 1.2 comments0% (Jul '25) - 2.3 comments100% (Aug '25) - 2 comments50% (Oct '25) - 1 comments100% (Nov '25) - 12 comments100% (Dec '25) - 5.5 comments100% (Jan '26) - 1.3 comments

Historical Price Data

Seiko Prospex SPB143
$420$490$560$630May '25Jun '25Aug '25Sep '25Oct '25Dec '25Jan '26Feb '26Apr '26May '26Low: $446.25Current: $590
Seiko Prospex SPB143
All-time low: $431.25(2025-06)

What Redditors Actually Say

What Redditors Say

Best praise vs top criticism for Seiko Prospex SPB143

Best Praise
+24 pts
“1 year in. Am I enthusiast yet? Tudor BB58 - bc Reddit IWC Mark XX - sophisticated GADA Rolex Datejust 36 - daily driver Casio F91W - classic god tier JK don’t kick me out. Seriously, I need validation… Seiko SPB143 - Diver. It’s cool. I like it. Farer Lander GMT - I fall in and out of love with this one. I can’t decide if I want to keep it or sell it and actually get a Mark XX. I’m fickle. Christopher Ward C63 Sealander 36 - Literally daily driver. It’s lightweight, easy to read, and nobody asks me about my Rolex. But also bc I can’t get a Rolex. G-Shock GWM5610 - for when ~~I’m walking the dog or sitting in the jacuzzi~~ training for triathlons.”
r/Watches
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Top Criticism
+5 pts
“Even if the SPB143 shares some of the DNA of the OG 62mas, it’s just such a different watch that it’s really not a good substitute. At least not for myself. The SPB151J1 for instance, is a lot closer to the OG Willard than the SPB143 is to the 62mas.”
r/Watches
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9 more quotes available below

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Frequently Asked Questions

Is the Seiko Prospex SPB143 worth buying?
Reddit highly recommends the Seiko Prospex SPB143, praising it as a gorgeous and very well-regarded diver in the watch collecting community.
What do Redditors love about the Seiko Prospex SPB143?
Redditors highlight: 🎯 Gorgeous in real life. ✨ Beautiful grey dial. 🎯 Very well regarded in the watch.
What are the downsides of the Seiko Prospex SPB143?
Some criticisms include: "Even if the SPB143 shares some of the DNA of the OG 62mas, it’s just such a different watch that it’s really not a good substitute. At least not for myself."
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (Seiko Prospex SPB143 has 70) tend to have more reliable scores.

70 Reddit opinions analyzed • Last updated 5/25/2026

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