Side by side

Oak & Oscar The Humboldt ExP-02vsGrand Seiko SBGY007

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
SBGY007
Grand SeikoSBGY007
MSRP $8,900

At a glance

17 of 29 specs differ
Diameter
The Humboldt ExP-0239.5mm
SBGY00738.5mm
Power Reserve
The Humboldt ExP-0256h
SBGY00772h
Water Resistance
The Humboldt ExP-02200m
SBGY00730m
MSRP
The Humboldt ExP-02$2,400
SBGY007$8,900

Full specifications

Case

8 specs
Category
Tool
Dress
Diameter
39.5mm
38.5mm
Thickness
12.4mm
10.2mm
Lug-to-Lug
46.8mm
43.7mm
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
9R31
Type
Automatic
Spring Drive
Power Reserve
56h
72h
Complications
GMT, Chronograph
None

Pricing

1 specs
MSRP
$2,400
$8,900

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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 SBGY007

Grand Seiko SBGY007 owners and reviewers widely praise its stunning, textured blue dial, inspired by frozen Lake Suwa, and its clean, time-only aesthetic. The watch is lauded for its impeccable finishing, including high polish and Zaratsu polishing, and its classic, thin 38.5mm stainless steel dress case. The hand-wound Spring Drive Caliber 9R31 movement is noted for its accuracy, rated to ±1 second per day, and a 72-hour power reserve, with its power reserve indicator discreetly placed on the case back. While some reviewers suggest room for improvement in Grand Seiko's pricing structure, the $8,300 USD price is seen by others as a relatively affordable entry into the brand's high-end offerings. On balance, the consensus is that the Grand Seiko SBGY007 is highly regarded for its exceptional dial artistry and refined finishing at its price point.

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