Side by side

Oak & Oscar The Humboldt ExP-02vsGrand Seiko SBGK007

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
SBGK007
Grand SeikoSBGK007
MSRP $7,300

At a glance

17 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
SBGK00739mm
Power Reserve
The Humboldt ExP-0256h
SBGK00772h
Water Resistance
The Humboldt ExP-02200m
SBGK00730m
MSRP
The Humboldt ExP-02$2,400
SBGK007$7,300

Full specifications

Case

8 specs
Category
Tool
Dress
Diameter
39.5mm
39mm
Thickness
12.4mm
11.6mm
Lug-to-Lug
46.8mm
44mm
Lug Width
20mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
200m
30m
Caseback
Display
Solid

Crystal & Dial

4 specs
Crystal Shape
Double-domed
Flat
AR Coating
Inner
Yes
Dial Color
Grey
Black
Lume
Super-LumiNova BGW9
None

Movement

4 specs
Caliber
Sellita SW300
9S63
Type
Automatic
Manual
Power Reserve
56h
72h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$7,300

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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.

Grand Seiko SBGK007

The Grand Seiko SBGK007 is praised for its glorious champagne-to-silver-white sunburst dial and domed sapphire crystal. Owners and reviewers highlight its wonderfully slim profile, attributed to the manual-wind movement, contributing to excellent wearability and a design that subtly evokes vintage pieces. The movement is described as attractive yet workmanlike, with accuracy rated between +5 to -3 seconds per day and a 72-hour power reserve. The watch measures 39mm and 11.6mm thick, and is offered on a high-quality leather strap. On balance, owners and reviewers highly regard the Grand Seiko SBGK007 for its elegant slim case and beautifully textured dial.

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