Side by side

Oak & Oscar The Humboldt ExP-02vsSpinnaker Bradner GMT

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
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

14 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Bradner GMT42mm
Power Reserve
The Humboldt ExP-0256h
Bradner GMT40h
Water Resistance
The Humboldt ExP-02200m
Bradner GMT180m
MSRP
The Humboldt ExP-02$2,400
Bradner GMT$299

Full specifications

Case

7 specs
Category
Tool
GMT
Diameter
39.5mm
42mm
Thickness
12.4mm
15mm
Lug-to-Lug
46.8mm
50mm
Lug Width
20mm
22mm
Water Resistance
200m
180m
Caseback
Display
Solid

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW300
Seiko NH34A
Power Reserve
56h
40h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$299

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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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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