The Titanium Field Guide

Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059)

The Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059) is a current-production dress watch with a titanium (diashield) case, finished with diashield super-hard coating. The maker states no nickel-bearing steel at any skin-contact point, across the case, caseback and bracelet.

All Seiko watchesWatch dress watchesUnder 11 mm thickOn a titanium braceletSolarCompact (38 mm and under)
Material
Titanium
Grade / type
Titanium (Diashield)
Water resistance
100 m
Type
Dress
Price
– · approx, JDM
Case diameter
27.4 mm
Thickness
7.7 mm
Lug-to-lug
36.4 mm
Origin
Japan
Movement
Solar radio-controlled
Caliber
1B32
Complications
Time only
Colour
Grey
Surface treatment
Diashield super-hard coating
Finish technology
Surface hardening
Caseback
Titanium
Nickel-free
Maker states none
Bracelet / strap
Titanium bracelet
Matching bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Availability
Offered
Status
Current
Not published
Reference, Weight, Power reserve, Hardness, Construction, Lume
Medium confidence Verified Jul 2026 Source: Seiko
Facts are free to cite with a link.
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Frequently asked questions

Is the Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059) nickel-free?

On the maker's published specification, no nickel-bearing steel touches the skin: a titanium (diashield) case with a titanium caseback, plus a non-steel crown and bracelet and clasp. That is what the guide records rather than a test of the watch, so confirm the contact points with the maker before buying if you react to nickel.

What is the case material of the Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059)?

The Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059) has a titanium (diashield) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059)?

It is 27.4 mm in diameter, 7.7 mm thick, 36.4 mm lug to lug, and water resistant to 100 m.

How much does the Seiko Lukia I Collection Titanium Solar Radio (Black) (SSQW059) cost, and is it available?

It is current-production; the guide does not list a price for it.

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