Editorial
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.
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.
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.
