Which is cheaper, the Oak & Oscar The Humboldt ExP-02 or the Hamilton Khaki Field Mechanical Bronze?

At MSRP the Hamilton Khaki Field Mechanical Bronze is the cheaper of the two at $1,025, against $2,400 for the Oak & Oscar The Humboldt ExP-02 — a $1,375 gap before any retailer discounting.

Which is bigger, the Oak & Oscar The Humboldt ExP-02 or the Hamilton Khaki Field Mechanical Bronze?

The Oak & Oscar The Humboldt ExP-02 wears larger at 39.5mm versus 38mm for the Hamilton Khaki Field Mechanical Bronze — a 1.5mm difference across the dial.

Which has better water resistance, the Oak & Oscar The Humboldt ExP-02 or the Hamilton Khaki Field Mechanical Bronze?

The Oak & Oscar The Humboldt ExP-02 is rated to 200m versus 50m for the Hamilton Khaki Field Mechanical Bronze.

Which has a longer power reserve, the Oak & Oscar The Humboldt ExP-02 or the Hamilton Khaki Field Mechanical Bronze?

The Hamilton Khaki Field Mechanical Bronze carries a 80-hour power reserve against 56 hours on the Oak & Oscar The Humboldt ExP-02.

What movement does the Oak & Oscar The Humboldt ExP-02 run compared to the Hamilton Khaki Field Mechanical Bronze?

The Oak & Oscar The Humboldt ExP-02 runs a automatic caliber (Sellita SW300), while the Hamilton Khaki Field Mechanical Bronze runs a manual (H-50).

Side by side

Oak & Oscar The Humboldt ExP-02vsHamilton Khaki Field Mechanical Bronze

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Oak & Oscar The Humboldt ExP-02

ExP02-Hum

MSRP $2,400

Hamilton Khaki Field Mechanical Bronze

h69459510

MSRP $1,025

At a glance

15 of 29 specs differ

Diameter

The Humboldt ExP-0239.5mm

Khaki Field Mechanical Bronze38mm

Power Reserve

The Humboldt ExP-0256h

Khaki Field Mechanical Bronze80h

Water Resistance

The Humboldt ExP-02200m

Khaki Field Mechanical Bronze50m

MSRP

The Humboldt ExP-02$2,400

Khaki Field Mechanical Bronze$1,025

Full specifications

Case

7 specs

Crystal & Dial

3 specs

Crystal Shape

Double-domed

Flat

Dial Color

Grey

White

Lume

Super-LumiNova BGW9

None

Movement

4 specs

Caliber

Sellita SW300

H-50

Type

Automatic

Manual

Power Reserve

56h

80h

Complications

GMT, Chronograph

None

Pricing

1 specs

MSRP

$2,400

$1,025

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Oak & Oscar The Humboldt ExP-02

Oak & Oscar The Humboldt ExP-02 is a 39.5mm stainless steel tool watch featuring a unique, layered aluminum "ghost dial" for legibility and 200m water resistance, powered by a Sellita SW300 movement. Its appeal is limited by a US$2,550 price and an extremely limited production of 20 pieces, with its experimental dial construction done in Chicago. Overall, reviewers highlight the endearing dial and in-house bezel production as key features of the Oak & Oscar Humboldt ExP-02.

Hodinkee

Fratello

Hamilton Khaki Field Mechanical Bronze

Owners and reviewers widely praise the Hamilton Khaki Field Mechanical Bronze for its attractive bronze case that develops a unique patina, its comfortable 38mm size, and the satisfying winding action of its hand-wound H-50 movement, which provides an 80-hour power reserve. The vintage military design, legible matte black dial with beige lume, and overall value are frequently highlighted as key strengths. Some owners note the lugs appear large, and while earlier models had 50m water resistance, newer versions offer 100m. Overall, owners and reviewers rate the Hamilton Khaki Field Mechanical Bronze highly for its vintage aesthetic and character-building patina at an accessible price.

From video reviewers

The watch's bronze case develops a unique patina over time, adding to its character. A potential weakness is the watch's bronze reacting with certain skin types or environments, causing discoloration or staining. Reviewers disagree on the lume brightness, with one reviewer finding it lacking and the other not mentioning it.

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