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Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067)

The Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067) is a 45.4 mm titanium dive watch with an 8L45 automatic movement. The case is surface-hardened, which guards against the scuffs bare titanium picks up.

All Seiko watchesDiver watchesOn a titanium braceletMicro-adjust 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
Micro-adjust clasp
Yes
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. The caseback is steel, and steel carries nickel, so the guide does not list it as nickel-free.

What grade of titanium is the Seiko Prospex Marinemaster Professional 600m Titanium (SBDX067)?

Titanium, with no grade stated. The caseback is steel, not titanium. The record is at medium confidence, so check the maker's page before relying on it.

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

The case is 45.4 mm across. It is water resistant to 600 m.

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

It is in production, at a list price of $4,600.

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