Side by side

Oak & Oscar The Humboldt ExP-02vsBoldr Safari

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
Safari
BoldrSafari
MSRP $449

At a glance

13 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Safari40mm
Power Reserve
The Humboldt ExP-0256h
Safari40h
Water Resistance
The Humboldt ExP-02200m
Safari200m
MSRP
The Humboldt ExP-02$2,400
Safari$449

Full specifications

Case

5 specs
Diameter
39.5mm
40mm
Thickness
12.4mm
12mm
Lug-to-Lug
46.8mm
46mm
Material
316L Stainless Steel
Stainless Steel
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Inner
Yes
Dial Color
Grey
Silver Fox
Lume
Super-LumiNova BGW9
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW300
Seiko NH38A
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$449

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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.

Boldr Safari

Owners widely praise the Boldr Safari for its attractive dials, robust build with 200 meters of water resistance, and reliable Seiko movements. The California dial design is a frequent highlight, as is the strong lume. Some owners note the GMT variant offers full GMT functionality, while others point out the movement's date-only nature on certain models leads to a vestigial crown position. The animal artwork on the display caseback is a point of contention, with some finding it detracts from the view of the movement. Overall, owners rate the Boldr Safari highly for its value and distinctive design elements.

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