The Wristwatch 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 grey titanium (super-hard coating) case, finished with super-hard coating. It measures 45.4 mm across, and is water resistant to 600 m. Inside is the 8L45 automatic (saturation diver) movement, with 72 h power reserve. Complications: Date. Priced from $4,600 (60th Anniversary standard-production (2025)). Brand origin: Japan.

Titanium and ceramic diver watchesTitaniumDiversUnder $5,000
Reference
Type
Diver
Price
$4,600 · 60th Anniversary standard-production (2025)
Case diameter
45.4 mm
Thickness
Lug-to-lug
Water resistance
600 m
Weight
Origin
Japan
Movement
Automatic (saturation diver)
Caliber
8L45
Power reserve
72 h
Complications
Date
Material
Titanium
Grade / type
Titanium (super-hard coating)
Colour
Grey
Hardness
Construction
Surface treatment
Super-hard coating
Caseback
Steel
Nickel-free
No (steel contact)
Bracelet / strap
Titanium bracelet
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Black
Lume
LumiBrite
Availability
Offered
Status
Current
Medium confidence Verified Jul 2026 Source: Seiko (maker press) Maker / listing ↗
Facts are free to cite with a link.
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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 grey 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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