The Titanium Field Guide

Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067)

The Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067) is a current-production diver watch with a titanium (super-hard coating) case, finished with super-hard coating. It is priced well above the $1,299 median for the category. It ships on a matching titanium bracelet rather than a strap.

All Seiko watchesWatch diver watchesOn a titanium bracelet
Price
$4,600
Material
Titanium
Grade / type
Titanium (super-hard coating)
Water resistance
600 m
Type
Diver
Case diameter
45.4 mm
Origin
Japan
Movement
Automatic (saturation diver)
Caliber
8L45
Power reserve
72 h
Complications
Date
Colour
Grey
Surface treatment
Super-hard coating
Finish technology
Surface hardening
Caseback
Steel
Nickel-free
No (steel contact)
Bracelet / strap
Titanium bracelet
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Lume
LumiBrite
Availability
Offered
Status
Current
Not published
Reference, Thickness, Lug-to-lug, Weight, Hardness, Construction
Medium confidence Verified Jul 2026 Source: Seiko (maker press)
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Frequently asked questions

Is the Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067) nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What is the case material of the Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067)?

The Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067) has a titanium (super-hard coating) case, though its caseback is steel. It is recorded at medium confidence pending a maker-stated material.

What size is the Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067)?

It is 45.4 mm in diameter, and water resistant to 600 m.

How much does the Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067) cost, and is it available?

It is current-production and lists from $4,600.

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