Hamilton

Belowzero Auto Titanium

Reference Number :

H78505330

Series : Khaki Navy

Retail: $1,995

(As of: 06/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Hamilton. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThis isn't just a watch; it's a piece of submersible hardware for your wrist. The Hamilton Khaki Navy BeLOWZERO is an absolute unit, a 46mm behemoth carved from black PVD-coated titanium that feels surprisingly light for its formidable presence. It laughs at pressure, with a screw-down crown and a case built to withstand a crushing 1000 meters of water depth. Forget worrying about scratches; the sapphire crystal is ready for anything. And while its exterior screams tactical instrument, the heart is a sophisticated Swiss automatic. The Caliber H-10 movement quietly provides a massive 80-hour power reserve, meaning you can set it down for a long weekend and it'll still be ticking accurately when you pick it back up. It’s the ultimate expression of over-engineering, a dark, menacing tool that’s as much a conversation starter as it is a reliable deep-sea companion.

DescriptionThe H78505330 model is engineered with a 46mm titanium case, a material chosen for its optimal balance of high strength and low density. This case is treated with a black PVD coating, which enhances its resistance to wear and provides a uniform, non-reflective surface. Overall case thickness is specified at 15.7mm, and the inter-lug width is 24mm, designed to secure the robust strap system. A critical feature for its depth rating is the screw-down crown, which ensures a hermetic seal against water ingress. Legibility is maximized through the use of a sapphire crystal, which is further enhanced with an anti-reflection coating to mitigate glare in challenging light environments.

Powering the instrument is the Caliber H-10 automatic movement, a three-hand mechanical engine noted for its substantial 80-hour power reserve. This extended operational capacity minimizes the necessity for frequent manual winding or wear. The movement's design in this application forgoes a date function to maintain a clean, highly legible dial layout focused solely on timekeeping. The watch's water resistance is rated to 100 bar, equivalent to a depth of 1000 meters or 3280.8 feet, with a pressure tolerance of 1450 psi. The timepiece is affixed to the wrist via a strap (reference H6007851111) that fastens with a 22mm wide H-Buckle, complementing the case's dark aesthetic and functional design.

GenderMen

SignaturesHamilton

Country of OriginSwitzerland

Case Size46 mm

MovementAutomatic

CaliberH-10

FunctionsHours, Minutes, Seconds

Power Reserve80 Hours

Case MaterialsTitanium, PVD

Bezel MaterialsTitanium, PVD

Lug MaterialsTitanium, PVD

CrownScrew Down