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. Nothing touching the skin is nickel-bearing steel, verified across the case, caseback and bracelet.

Titanium dress watchesUnder 11 mm thickOn a titanium braceletSolarCompact (38 mm and under)
Titanium
Titanium (Diashield)
Water resistance
100 m
Nickel-free
Yes
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
Case shape
Tonneau
Case colour
Natural / grey
Finish technology
Surface hardening
Surface treatment
Diashield super-hard coating
Caseback
Titanium
Bracelet / strap
Titanium bracelet
Titanium bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Availability
Offered
Status
Current
Not published
Reference, Weight, Power reserve, Lume Help verify
Medium confidence Verified Jul 2026 Source: Seiko Maker / listing ↗
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?

Yes. Nothing nickel-bearing touches the skin: a Titanium (Diashield) case with a titanium caseback, plus a non-steel crown and bracelet and clasp. The Titanium Field Guide marks it nickel-free for whole-watch skin contact. If your allergy is severe, confirm the contact points with the maker.

What grade of titanium is 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 grade.

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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