The Titanium Field Guide

Zelos Swordfish 40 Titanium

The Zelos Swordfish 40 Titanium is a current-production diver watch with a Grade 2 titanium case. At 150 g it sits among the heavier diver watches in the guide, and is priced well under the $1,300 median for the category.

Titanium diver watchesUnder $1,000MicrobrandLightest, ranked
Price
$549
Titanium
Grade 2
Weight
150 g
Water resistance
200 m
Nickel-free
No
Type
Diver
Case diameter
40.0 mm
Thickness
12 mm
Lug-to-lug
46 mm
Origin
Singapore
Movement
Automatic
Caliber
Seiko NH35
Power reserve
~41 h
Complications
Date
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
Surface treatment
None (brushed/satin)
Bracelet / strap
Grade 2 titanium
Crystal
Flat sapphire, inner AR
Display back
No
Dial
Blue, green, red, grey, sand, white mother-of-pearl, and forged carbon colourways
Dial colours
White Grey Blue Green Red Champagne
Lume
Super-LumiNova X1 C3/BGW9
Availability
Offered
Status
Current
Not published
Reference, Caseback, Titanium bracelet Help verify
High confidence Verified Jul 2026 Source: Fratello Maker / listing ↗
Facts are free to cite with a link.
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Frequently asked questions

Is the Zelos Swordfish 40 Titanium 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 grade of titanium is the Zelos Swordfish 40 Titanium?

The Zelos Swordfish 40 Titanium has a Grade 2 titanium case. This is confirmed against the maker spec.

What size is the Zelos Swordfish 40 Titanium?

It is 40.0 mm in diameter, 12 mm thick, 46 mm lug to lug, and water resistant to 200 m.

How much does the Zelos Swordfish 40 Titanium weigh?

About 150 g.

How much does the Zelos Swordfish 40 Titanium cost, and is it available?

It is current-production and lists from $549.

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