Side by side

Oak & Oscar The Humboldt ExP-02vsHorage Revolution 3 MicroReg

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
Revolution 3 MicroReg
HorageRevolution 3 MicroReg
MSRP $5,320

At a glance

16 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Revolution 3 MicroReg41mm
Power Reserve
The Humboldt ExP-0256h
Revolution 3 MicroReg72h
Water Resistance
The Humboldt ExP-02200m
Revolution 3 MicroReg100m
MSRP
The Humboldt ExP-02$2,400
Revolution 3 MicroReg$5,320

Full specifications

Case

8 specs
Category
Tool
Dress
Diameter
39.5mm
41mm
Thickness
12.4mm
10.05mm
Lug-to-Lug
46.8mm
48.22mm
Lug Width
20mm
22mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
100m
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Inner
No
Dial Color
Grey
Black
Lume
Super-LumiNova BGW9
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW300
Horage K2
Power Reserve
56h
72h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$5,320

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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.

Horage Revolution 3 MicroReg

The Horage Revolution 3 MicroReg showcases an innovative external micro-adjustment system for on-the-fly regulation via electromagnetic pulse, a remarkable feat of micro-engineering. This proof-of-concept prototype is still in early development, with a projected launch in late summer 2026 and a founder's price of CHF 3,900. On balance, reviewers highlight the revolutionary regulation technology as the defining characteristic of the Horage Revolution 3 MicroReg.

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