Side by side

CWC G40 Sonar Quartz WatchvsYema Diver

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
Diver
YemaDiver
MSRP $990

At a glance

10 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
Diver39.5mm
Power Reserve
G40 Sonar Quartz Watch40h
Diver40h
Water Resistance
G40 Sonar Quartz Watch200m
Diver200m
MSRP
G40 Sonar Quartz Watch$333
Diver$990

Full specifications

Case

5 specs
Category
Field
Diver
Diameter
40mm
39.5mm
Thickness
12mm
10.95mm
Lug-to-Lug
46mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
CWC G40 Sonar Quartz Watch
Black
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Sellita SW200

Pricing

1 specs
MSRP
$333
$990

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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.

Yema Diver

One owner reported a water ingress issue on their Yema Diver the first time it got wet in a lake, despite rinsing and inspecting the watch and bezel. Another owner notes this manual wind Yema Diver has a cool patina but is unlikely to be waterproof or gain value. Overall, owners view the Yema Diver as a fun second watch rather than an investment.

From video reviewers

The Swiss Sellita movement is a notable feature. Reviewers did not reach a consensus on any weaknesses.

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