The Wristwatch Field Guide

Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary)

Archive · used only

The Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary) is a discontinued diver watch with a titanium (super-hard coated) case, finished with super-hard coating. At 174 g it sits among the heavier diver watches in the guide, and is priced well above the $1,199 median for the category. It ships on a matching exotic-material bracelet rather than a strap. No longer offered new; listed here as an archive reference for the used market.

All Seiko watchesExotic-material diver watchesTitaniumDiversUnder $5,000
Price
$4,600
Material
Titanium
Grade / type
Titanium (super-hard coated)
Weight
174 g (head only)
Water resistance
600 m
Type
Diver
Case diameter
45.4 mm
Thickness
16 mm
Lug-to-lug
50.4 mm
Origin
Japan
Movement
Automatic
Caliber
Seiko 8L45
Power reserve
72 h
Complications
Date
Colour
Grey
Surface treatment
Super-hard coating
Caseback
Titanium
Nickel-free
Not verified (clasp or buckle material not confirmed)
Bracelet / strap
Titanium bracelet (super-hard coated)
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Blue gradient, wave pattern
Dial colours
Blue
Lume
LumiBrite
Availability
No longer offered
Status
Archive (60th Anniversary limited edition of 600, sold out; maker product page retired)
Not published
Reference, Hardness, Construction
High confidence Verified Jul 2026 Source: Monochrome / Time and Watches Maker ↗
Facts are free to cite with a link.
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Alternatives to the Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary)

BallRoadmaster M Marvelight Bronze$3,49943.0 mm14.4 mm thickDiversame category · same style · shared complications · similar price
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More exotic-material watches from Seiko

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SeikoProspex "Cave Diver" Shogun Titanium (SPB357)$1,50043.0 mmDiverSeiko Prospex Marinemaster Professional 600m Titanium (SBDX067)SeikoProspex Marinemaster Professional 600m Titanium (SBDX067)$4,60045.4 mmDiverSeiko Prospex LX Line Spring Drive GMT Titanium (SNR035)SeikoProspex LX Line Spring Drive GMT Titanium (SNR035)$5,25044.8 mmOther

Frequently asked questions

What is the case material of the Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary)?

The Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary) has a titanium (super-hard coated) case with a titanium caseback. This is confirmed against the maker spec.

What size is the Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary)?

It is 45.4 mm in diameter, 16 mm thick, 50.4 mm lug to lug, and water resistant to 600 m.

How much does the Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary) weigh?

About 174 g (head).

How much does the Seiko Prospex Marinemaster Professional 600m Titanium (SLA081, 60th Anniversary) cost, and is it available?

It is no longer offered new; the guide keeps it as an archive reference for the used market, and it listed from $4,600 when current.

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