Side by side

CWC G40 Sonar Quartz WatchvsOak & Oscar The Humboldt ExP-02

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

G40 Sonar Quartz Watch
CWCG40 Sonar Quartz Watch
MSRP $333
The Humboldt ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400

At a glance

14 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
The Humboldt ExP-0239.5mm
Power Reserve
G40 Sonar Quartz Watch40h
The Humboldt ExP-0256h
Water Resistance
G40 Sonar Quartz Watch200m
The Humboldt ExP-02200m
MSRP
G40 Sonar Quartz Watch$333
The Humboldt ExP-02$2,400

Full specifications

Case

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

Crystal & Dial

4 specs
Crystal Shape
Flat
Double-domed
AR Coating
Yes
Inner
Dial Color
CWC G40 Sonar Quartz Watch
Grey
Lume
Super-LumiNova
Super-LumiNova BGW9

Movement

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

Pricing

1 specs
MSRP
$333
$2,400

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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.

CWC G40 Sonar Quartz Watch

Owners widely appreciate the CWC G40 Sonar Quartz Watch for its classic G10 design, 40mm case size, and 20atm water resistance, noting its light, rugged, and reliable "grab-n-go" nature. Some find the dial proportions have too much negative space, while others praise its unique anodized red crown and quality NATO straps. A larger crown can dig into the wrist, and the lack of a battery hatch is a trade-off for its 100m water resistance. On balance, owners value the CWC G40 Sonar Quartz Watch for its robust build and classic aesthetic, though its price point and competition are frequently cited concerns.

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.

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