Side by side

Oak & Oscar The Humboldt ExP-02vsSternglas Naos Pro Automatik

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
Naos Pro Automatik
SternglasNaos Pro Automatik
MSRP $755

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Naos Pro Automatik38mm
Power Reserve
The Humboldt ExP-0256h
Naos Pro Automatik42h
Water Resistance
The Humboldt ExP-02200m
Naos Pro Automatik50m
MSRP
The Humboldt ExP-02$2,400
Naos Pro Automatik$755

Full specifications

Case

7 specs
Category
Tool
Dress
Diameter
39.5mm
38mm
Thickness
12.4mm
9mm
Lug-to-Lug
46.8mm
42.4mm
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
Lume
Super-LumiNova BGW9
Luminova Punkte

Movement

4 specs
Caliber
Sellita SW300
Miyota 9015
Power Reserve
56h
42h
Jewels
25
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$755

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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.

Sternglas Naos Pro Automatik

The Sternglas Naos Pro Automatik is praised for its slim 9mm case and Bauhaus dial design, featuring clear hour markers and a framed date window. Owners note the upgraded Miyota 9015 movement with a 4Hz beat rate. Accuracy is reported as -10/+30 seconds per day, which is not ideal for precision enthusiasts. The five-link bracelet's lack of fitted end-links and the optional bracelet's chunkiness are flagged as areas lacking refinement. Overall, reviewers highlight the Sternglas Naos Pro Automatik's improved wearability and premium feel at its price point.

From video reviewers

The Bauhaus design is a strength. The value proposition is a weakness.

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