Side by side

Oak & Oscar The Humboldt ExP-02vsHalios Universa II

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
Universa II
HaliosUniversa II
MSRP $995

At a glance

14 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Universa II38mm
Power Reserve
The Humboldt ExP-0256h
Universa II40h
Water Resistance
The Humboldt ExP-02200m
Universa II100m
MSRP
The Humboldt ExP-02$2,400
Universa II$995

Full specifications

Case

6 specs
Category
Tool
Dress
Diameter
39.5mm
38mm
Thickness
12.4mm
11.8mm
Lug-to-Lug
46.8mm
48mm
Water Resistance
200m
100m
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal
Sapphire
Sapphire (double-domed)
Crystal Shape
Double-domed
Flat
Dial Color
Grey
Gold
Lume
Super-LumiNova BGW9
None

Movement

3 specs
Caliber
Sellita SW300
Sellita SW300-1
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$995

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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.

Halios Universa II

Owners widely praise the Halios Universa II for its applied indices, excellent finishing for the price, and comfortable 38mm dimensions. The integrated bracelet design with a satisfying micro-adjust clasp and case architecture are described as masterclasses. However, some find the bracelet clasp chunkier than the overall design, and the angular lug design is noted as not being for everyone. One owner reported unexpected pastel dial colors and a poor winding action. On balance, owners rate the Halios Universa II highly for its applied indices and excellent finishing at the price point.

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