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Home/Browse/Seiko/Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition
Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition
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Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition

Diver

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is praised for its beautiful design and refinement over previous models, featuring vertically textured glacier-inspired dials. Owners, however, consider the €1500 RRP too high, suggesting a price closer to €900-€1000, noting the aluminum bezel insert instead of ceramic. Some owners report the 6R movement runs slow. On balance, owners find the Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition beautiful and a refinement, but the price and aluminum bezel are points of contention.

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Prospex Sea The Black Series
1 Variant
Lume:LumiBrite on hands, index(es) and bezel
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Retail MSRP
$1,350
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Alternatives
Case
42.7mm
Power Reserve
70h
Movement
Automatic
Water Resistance
200m
Crystal
Sapphire + AR
01

Case Dimensions

Diameter42.7mm
Thickness13.2mm
Lug-to-Lug46.4mm
Lug Width20mm
02

Case Build

MaterialStainless Steel
Water Resistance200m
03

Crystal & Dial

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

Movement

Caliber
Seiko 6R35
TypeAutomatic
Beat Rate—
Power Reserve70 hours
Jewels24
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleTextured
BezelRotating (dive)
Bracelet / strapLug-attached bracelet
HandsBaton
AI-detected from product image · 5/22/2026
In a nutshell

The Seiko Prospex Sea 1970 Heritage Diver's Save the Ocean Special Edition is an automatic diver watch, with a 42.7mm stainless steel case, 13.2mm thick, powered by the Seiko 6R35 movement and a 70-hour power reserve. Water resistance is rated to 200m, under a sapphire crystal. Manufacturer MSRP is $1,350.

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