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Seiko Prospex Sea
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Seiko Prospex Sea

Diver

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superb lume, with many appreciating its comfortable wearability due to its case shape and lug-to-lug distance. Reviewers consistently highlight its impressive finishing and classic dive watch design, often noting the bright LumiBrite lume. Some owners find the watch to be large, thick, and heavy, while others consider it the perfect size, indicating a split opinion on wearability for smaller wrists. The power reserve from some movements is noted as less than newer variants, and the clasp quality receives mixed feedback. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its exceptional finishing and value proposition in the dive watch market.

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Prospex Sea The Black Series
8 Variants· 34mm
Lume:LumiBrite on hands and index(es)
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Retail MSRP
$795
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Alternatives
Case
34mm
Power Reserve
—
Movement
Quartz
Water Resistance
200m
Crystal
Sapphire + AR
01

Case Dimensions

Diameter
Thickness8.7mm
Lug-to-Lug40.8mm
Lug Width16mm
02

Case Build

MaterialStainless Steel
Water Resistance200m
03

Crystal & Dial

CrystalSapphire
AR CoatingAnti-reflective coating on inner surface
LumeLumiBrite on hands and index(es)
04

Movement

Caliber
6N01
TypeQuartz
Beat Rate—
Power Reserve—
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleMatte
BezelFixed
Bracelet / strapLug-attached bracelet
HandsBaton
AI-detected from product image · 5/22/2026
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