The Wristwatch Field Guide

Zelos Spearfish Titanium

Archive · used only

The Zelos Spearfish Titanium is a discontinued diver watch with a grey titanium (hardened ~1200 hv) case, finished with surface hardened ~1200 hv. It measures 40.0 mm across, 10 mm thick, and is water resistant to 200 m. Inside is the Sellita SW300 + TT651 module automatic (grande date / gmt options) movement, with ~68 h power reserve. Complications: Date, GMT. Priced from $899 (approx, varies (Grande Date / GMT)). Brand origin: Singapore. No longer offered new; listed here as an archive reference for the used market.

Titanium and ceramic diver watchesTitaniumDiversGMTUnder $5,000
Reference
Type
Diver
Price
$899 · approx, varies (Grande Date / GMT)
Case diameter
40.0 mm
Thickness
10 mm
Lug-to-lug
Water resistance
200 m
Weight
Origin
Singapore
Movement
Automatic (Grande Date / GMT options)
Caliber
Sellita SW300 + TT651 module
Power reserve
~68 h
Complications
Date, GMT
Material
Titanium
Grade / type
Titanium (hardened ~1200 HV)
Colour
Grey
Hardness
Construction
Surface treatment
Surface hardened ~1200 HV
Caseback
Titanium
Nickel-free
No (steel contact)
Bracelet / strap
Titanium
Matching bracelet
Crystal
Sapphire, AR coated
Display back
No
Dial
Multiple
Lume
Super-LumiNova
Availability
No longer offered
Status
Base three-hand titanium Spearfish discontinued; only the Dual Time GMT remains
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 Spearfish 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 is the case material of the Zelos Spearfish Titanium?

The Zelos Spearfish Titanium has a grey titanium (hardened ~1200 hv) case with a titanium caseback. This is confirmed against the maker spec.

What size is the Zelos Spearfish Titanium?

It is 40.0 mm in diameter, 10 mm thick, and water resistant to 200 m.

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

It is no longer offered new; the guide keeps it as an archive reference for the used market, and it listed from $899 when current.

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