The Titanium Field GuidePicks of the month

Hamilton Khaki Navy BeLOWZERO Auto Titanium (black)

H78505330

The Hamilton Khaki Navy BeLOWZERO Auto Titanium (black) is a 46 mm titanium dive watch with a Hamilton H-10 automatic movement.

All Hamilton watchesDiver watchesUnder $3,000Lightest, ranked
Price
$1,995
Material
Titanium
Grade / type
Titanium (grade undisclosed)
Weight
129 g (with strap)
Water resistance
1000 m
Reference
H78505330
Type
Diver
Case diameter
46.0 mm
Thickness
15.7 mm
Origin
Switzerland
Movement
Automatic
Caliber
Hamilton H-10
Power reserve
80 h
Complications
Time only
Colour
Grey
Surface treatment
Brushed; helium escape valve
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
No (steel contact)
Bracelet / strap
Rubber strap
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Lume
Super-LumiNova
Availability
Offered
Status
Current
Not published
Lug-to-lug, Hardness, Construction, Matching bracelet
High confidence Verified Aug 2026 Source: Hamilton Spec checksGrade Jun 2026Price Aug 2026Weight Jun 2026
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SeikoProspex "Cave Diver" Shogun Titanium (SPB357)$1,50043.0 mmDiversame category · same style · similar price · similar sizeSeiko Prospex Shogun SPB189SeikoProspex Shogun SPB189$1,50043.5 mm13.3 mm thick121 gDiversame category · same style · similar price · similar sizeVictorinox Dive Pro Titanium AutomaticVictorinoxDive Pro Titanium Automatic$1,50043.0 mm14 mm thick105 gDiversame category · same style · similar price · similar size

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Frequently asked questions

Is the Hamilton Khaki Navy BeLOWZERO Auto Titanium (black) nickel-free?

No. At least one part that touches the skin is steel, usually the caseback or the clasp, and steel carries nickel, so the guide does not list it as nickel-free.

What grade of titanium is the Hamilton Khaki Navy BeLOWZERO Auto Titanium (black)?

The maker confirms titanium but does not publish a grade. The caseback is titanium too.

What size is the Hamilton Khaki Navy BeLOWZERO Auto Titanium (black)?

The case is 46 mm across and 15.7 mm thick. It is water resistant to 1,000 m.

How much does the Hamilton Khaki Navy BeLOWZERO Auto Titanium (black) weigh?

About 129 g on its strap.

How much does the Hamilton Khaki Navy BeLOWZERO Auto Titanium (black) cost, and is it available?

It is in production, at a list price of $1,995.

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