Side by side

Oak & Oscar The Humboldt ExP-02vsGruppo Gamma Field III GMT Date

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
Field III GMT Date
Gruppo GammaField III GMT Date
MSRP $459

At a glance

15 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
Field III GMT Date40mm
Power Reserve
The Humboldt ExP-0256h
Field III GMT Date41h
Water Resistance
The Humboldt ExP-02200m
Field III GMT Date200m
MSRP
The Humboldt ExP-02$2,400
Field III GMT Date$459

Full specifications

Case

7 specs
Category
Tool
GMT
Diameter
39.5mm
40mm
Thickness
12.4mm
14mm
Lug-to-Lug
46.8mm
48.5mm
Lug Width
20mm
22mm
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
Black
Lume
Super-LumiNova BGW9
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW300
Seiko Instruments NH38A
Power Reserve
56h
41h
Complications
GMT, Chronograph
GMT, Date

Pricing

1 specs
MSRP
$2,400
$459

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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.

Gruppo Gamma Field III GMT Date

Owners widely praise the Gruppo Gamma Field III GMT Date for its awesome looks, quality, and good value. The watch features a 40mm brushed 316L stainless steel case, box sapphire crystal, and 200m water resistance, powered by a Seiko NH34A movement. Some reviewers note the NH34A movement's accuracy can range from -20~+40 seconds per day, though one reviewer reported +5 seconds per day with a regulated movement. The dial's dense layout with Arabic numerals can be overwhelming for some, and one owner found the size unsuitable for smaller wrists. On balance, owners rate the Gruppo Gamma Field III GMT Date highly for its impressive finishing and toolish design at its price point.

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