Side by side

CWC G40 Sonar Quartz WatchvsSeiko Prospex Sea PADI Special Edition

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
Prospex Sea PADI Special Edition
SeikoProspex Sea PADI Special Edition
MSRP $650
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.

Seiko Prospex Sea PADI Special Edition

The Seiko Prospex Sea PADI Special Edition is widely praised for its attractive blue and red PADI colors, rich dial aesthetic, and excellent lume that stands out even in dim environments. Owners highlight its robust build quality and excellent bezel action, noting the wave dial is a favorite. However, the Hardlex crystal and the 4R36 movement's accuracy range of +45 to -35 seconds per day are identified as compromises for the price. Some owners find the diver's extension difficult to open and the bracelet adjustment challenging, though manageable. On balance, owners and reviewers rate the Seiko Prospex Sea PADI Special Edition highly for its build quality and striking dial design at its price point.

At a glance

12 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
Prospex Sea PADI Special Edition41.7mm
Power Reserve
G40 Sonar Quartz Watch40h
Prospex Sea PADI Special Edition41h
Water Resistance
G40 Sonar Quartz Watch200m
Prospex Sea PADI Special Edition200m
MSRP
G40 Sonar Quartz Watch$333
Prospex Sea PADI Special Edition$650

Full specifications

Case

4 specs
Category
Field
Diver
Diameter
40mm
41.7mm
Thickness
12mm
12.3mm
Lug-to-Lug
46mm
49.5mm

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
AR Coating
Yes
Inner
Dial Color
CWC G40 Sonar Quartz Watch
Black
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
4R35
Power Reserve
40h
41h
Jewels
25
23

Pricing

1 specs
MSRP
$333
$650
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