The Wristwatch Field Guide

Hamilton Khaki Navy BeLOWZERO Auto Titanium (black)

H78505330

The Hamilton Khaki Navy BeLOWZERO Auto Titanium (black) is a current-production diver watch with a titanium (grade undisclosed) case, finished with brushed; helium escape valve. At 129 g it sits around the middle for diver watches in the guide, and is priced above the $1,199 median for the category.

All Hamilton watchesExotic-material diver watchesTitaniumDiversUnder $5,000
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
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
Facts are free to cite with a link.
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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 nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What is the case material of the Hamilton Khaki Navy BeLOWZERO Auto Titanium (black)?

The Hamilton Khaki Navy BeLOWZERO Auto Titanium (black) has a titanium (grade undisclosed) case with a titanium caseback. This is confirmed against the maker spec.

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

It is 46.0 mm in diameter, 15.7 mm thick, and water resistant to 1000 m.

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

About 129 g (w/ strap).

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

It is current-production and lists from $1,995.

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