Side by side

Oak & Oscar The Humboldt ExP-02vsHamilton American Classic Valiant Auto

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

The Humboldt ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400
American Classic Valiant Auto
HamiltonAmerican Classic Valiant Auto
MSRP $645

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
American Classic Valiant Auto34mm
Power Reserve
The Humboldt ExP-0256h
American Classic Valiant Auto80h
Water Resistance
The Humboldt ExP-02200m
American Classic Valiant Auto50m
MSRP
The Humboldt ExP-02$2,400
American Classic Valiant Auto$645

Full specifications

Case

8 specs
Category
Tool
Dress
Diameter
39.5mm
34mm
Thickness
12.4mm
10.58mm
Lug-to-Lug
46.8mm
46mm
Lug Width
20mm
16mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
50m
Caseback
Display
Solid

Crystal & Dial

3 specs
Crystal Shape
Double-domed
Flat
Dial Color
Grey
Silver
Lume
Super-LumiNova BGW9
None

Movement

3 specs
Caliber
Sellita SW300
H-10
Power Reserve
56h
80h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$645

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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.

Hamilton American Classic Valiant Auto

Owners widely praise the Hamilton American Classic Valiant Auto for its classic design elements, such as the sunburst dial and Roman numerals, noting its suitability for everyday elegance and wearability under a cuff. One owner highlights the 39.5mm size and applied indices as a "hidden gem," while another appreciates the clean, simple design with thin Roman numerals. The watch is also commended for its comfortable bracelet and attractive lance hands, with confirmation that the bracelet is indeed changeable. Some owners note the date window's placement at three o'clock is a point of contention, and one owner reports the watch runs at approximately +6 seconds per day after ten years of intermittent use. On balance, owners rate the Hamilton American Classic Valiant Auto highly for its elegant, classic design and comfortable wearability at its price point.

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