Khaki Navy Scuba Auto

The Khaki Navy Scuba Auto 40mm is Hamilton's entry point into dive-adjacent tool watches: 100m rated, aluminum unidirectional bezel, powered by the H-10 automatic. Where the BeLOWZERO goes deep with helium escape and a full diver's profile, the Scuba wears more like a field watch that borrowed dive watch DNA. The canvas strap option makes that character explicit, and the price keeps it honest.

What it is

Hamilton introduced this reference in 2018 as a mid-tier option between the quartz Scuba and the more capable BeLOWZERO. The movement is the H-10, Hamilton's branded version of the ETA C07.611, a reliable workhorse with an 80-hour power reserve. No major generational overhauls since launch; the reference has remained consistent in case dimensions and dial layout.

The 40mm diameter and relatively modest 100m rating position it deliberately as a crossover piece rather than a dedicated diver.

Buying notes

Confirm the reference number is H82335131 and not a closely adjacent Scuba variant with a different dial color or strap configuration, as Hamilton uses long numeric codes that can be easy to transpose. The aluminum bezel insert scratches readily; check for gouges or fading around the pip at 12 o'clock, as replacement inserts add cost. At 100m water resistance this is a swimming watch, not a scuba watch in any practical sense, so inspect crown seals on pre-owned examples that saw water use.

The canvas strap is a NATO-style option that can be swapped, but verify the original bracelet or rubber strap is included if the seller is advertising a complete set.

Market read

New retail sits roughly in the $700-850 range depending on strap configuration, and the secondary market reflects that closely with little premium. Pre-owned examples in good condition typically trade at a modest discount to retail, making it one of the few modern automatics where buying new is not a significant penalty. Demand is steady but not speculative; this is a utility purchase, not a collector flip.

Service expectations

The H-10 (ETA C07.611) carries an 80-hour power reserve and is generally reliable. Hamilton recommends service intervals of around 5 years, with independent watchmakers typically quoting $200-350 for a full service on this movement. Water resistance resealing should be done at every service if the watch sees any water exposure.