The Titanium Field Guide

Seiko Brightz World Time SAGA159 (Titanium)

Archive · used only

The Seiko Brightz World Time SAGA159 (Titanium) is a discontinued watch with a Titanium (Bright Titanium, Diamond Shield hard coating) case, finished with diamond shield hard coating. At 90 g it sits around the middle for watches in the guide. It ships on a matching titanium bracelet rather than a strap. No longer offered new; listed here as an archive reference for the used market.

Titanium other watchesLightweightLightest, rankedOn a titanium braceletSolarWorldtimer
Titanium
Titanium (Bright Titanium, Diamond Shield hard coating)
Weight
90 g
Water resistance
100 m
Type
Other
Price
– · Y120,000 area at launch (JDM); secondary market only
Case diameter
42.5 mm
Thickness
11.8 mm
Origin
Japan
Movement
Solar radio-controlled quartz (world time)
Caliber
Seiko Cal. 8B54
Complications
Worldtimer, Date
Case shape
Round
Case colour
Natural / grey
Finish technology
Surface hardening
Surface treatment
Diamond Shield hard coating
Caseback
Titanium
Nickel-free
Not verified (clasp or buckle material not confirmed)
Bracelet / strap
Titanium bracelet
Titanium bracelet
Standard
Crystal
Sapphire, super-clear coating
Display back
No
Dial
Silver
Dial colours
Silver
Availability
No longer offered
Status
No longer in production (discontinued JDM Brightz)
Not published
Reference, Lug-to-lug, Power reserve, Lume Help verify
Medium confidence Verified Jun 2026 Source: Jackroad (SAGA159, case chitan) / 10keiya (SAGA159 component materials) Maker / listing ↗ Suggested by u/StudioZanello
Facts are free to cite with a link.
Reader reviews & photosContribute photo or review
No reviews yet. Be the first to write one.
See it in the interactive guideGet new-watch alertsContribute a photo or review

Browse all titanium watch comparisons →

Similar titanium watches

KRONOSTIAtlas GMT$20941.0 mm13 mm thickOthersame category · same style · similar size · similar thicknessKRONOSTI Deep Explorer 24HKRONOSTIDeep Explorer 24H$26941.0 mm13 mm thickOthersame category · same style · similar size · similar thickness
CitizenAttesa Tsuki-Yomi A-T (Super Titanium)$87543.0 mm105 gOthersame category · same style · similar size · same movementCitizen Attesa Blue Universe Satellite Wave GPS F950 (CC4106-74E)CitizenAttesa Blue Universe Satellite Wave GPS F950 (CC4106-74E)$2,43744.0 mm13.7 mm thickOthersame category · same style · similar size · same movementCitizen Attesa Satellite Wave GPS F950 2025 Limited (Super Titanium)CitizenAttesa Satellite Wave GPS F950 2025 Limited (Super Titanium)$2,58044.0 mm116 gOthersame category · same style · similar size · same movement
CitizenAttesa Satellite Wave GPS F950 Cosmic Blue (Super Titanium, Ti 50th)$2,90044.0 mm112 gOthersame category · same style · similar size · same movement
Montblanc1858 Geosphere 42mm Titanium (bracelet)$6,90042.0 mm12.8 mm thickOthersame category · same style · similar size · similar thicknessMaratac Large Titanium GMT (Gen 2)MaratacLarge Titanium GMT (Gen 2)$39944.0 mm12 mm thick45.2 gOthersame category · same style · similar size · similar thickness

Alternatives to the Seiko Brightz World Time SAGA159 (Titanium)

CasioLineage LCW-M100TSE$32540.0 mm9.4 mm thick73 gOthersame category · same style · shared complications · similar size
Montblanc1858 Geosphere 42mm Titanium (strap)$6,55042.0 mm12.8 mm thickOthersame category · same style · shared complications · similar sizeCasio Oceanus Manta OCW-S5000-1ACasioOceanus Manta OCW-S5000-1A$81042.3 mm9.5 mm thick82 gOthersame category · same style · shared complications · similar sizeCasio Oceanus Manta OCW-S7000-1ACasioOceanus Manta OCW-S7000-1A$1,30042.8 mm9.5 mm thick83 gOthersame category · same style · shared complications · similar sizeCitizen Attesa Satellite Wave GPS F950 (Super Titanium)CitizenAttesa Satellite Wave GPS F950 (Super Titanium)$2,21044.6 mm111 gOthersame category · same style · shared complications · similar sizeCitizen Attesa Black Titanium Eco-Drive GPS (Super Titanium, DLC)CitizenAttesa Black Titanium Eco-Drive GPS (Super Titanium, DLC)$2,21044.6 mm111 gOthersame category · same style · shared complications · similar size

More titanium watches from Seiko

Seiko Prospex Shogun Titanium (SPB191)SeikoProspex Shogun Titanium (SPB191)$1,20043.5 mm13.3 mm thick99 gDiver
SeikoProspex "Cave Diver" Shogun Titanium (SPB349)$1,50043.5 mmDiverSeiko Prospex SeikoProspex "Cave Diver" Shogun Titanium (SPB351)$1,50043.5 mmDiver
SeikoProspex "Cave Diver" Shogun Titanium (SPB357)$1,50043.0 mmDiverSeiko Prospex Marinemaster Professional 600m Titanium (SBDX067)SeikoProspex Marinemaster Professional 600m Titanium (SBDX067)$4,60045.4 mmDiverSeiko Prospex LX Line Spring Drive GMT Titanium (SNR035)SeikoProspex LX Line Spring Drive GMT Titanium (SNR035)$5,25044.8 mmOther

Frequently asked questions

What grade of titanium is the Seiko Brightz World Time SAGA159 (Titanium)?

The Seiko Brightz World Time SAGA159 (Titanium) has a Titanium (Bright Titanium, Diamond Shield hard coating) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated grade.

What size is the Seiko Brightz World Time SAGA159 (Titanium)?

It is 42.5 mm in diameter, 11.8 mm thick, and water resistant to 100 m.

How much does the Seiko Brightz World Time SAGA159 (Titanium) weigh?

About 90 g.

How much does the Seiko Brightz World Time SAGA159 (Titanium) cost, and is it available?

It is no longer offered new; the guide keeps it as an archive reference for the used market.

All titanium Seiko watches · Titanium other watches · All 1,163 watches

Learn: Titanium grades · Surface treatments · Why titanium scratches · How to read a spec

How we verify & grade · Image & Trademark Policy · Terms & Conditions