Side by side

CWC G40 Sonar Quartz WatchvsZelos Hammerhead V3 300m Titanium

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
Hammerhead V3 300m Titanium
ZelosHammerhead V3 300m Titanium
MSRP $559
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.

Zelos Hammerhead V3 300m Titanium

The Zelos Hammerhead V3 300m Titanium is widely praised for its exceptional lume, unique and beautiful dial finishing that reflects light dramatically, and solid build quality that exceeds its price point. Owners also highlight its comfortable wearability, especially the lightweight titanium variant, and the convenient on-the-fly micro-adjustment on the bracelet. One owner notes the Japanese movement performs better than anticipated, and the Ti-Damascus variant features a unique, patterned dial and bezel. However, some owners find the 44mm size large, the crown "off," and the bracelet clasp could be more scratch-resistant, with resizing pins described as stubborn. Reattaching the bracelet after removal is also noted as extremely difficult. Overall, owners rate the Zelos Hammerhead V3 300m Titanium highly for its impressive dial aesthetics and value for money.

At a glance

13 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
Hammerhead V3 300m Titanium44mm
Power Reserve
G40 Sonar Quartz Watch40h
Hammerhead V3 300m Titanium40h
Water Resistance
G40 Sonar Quartz Watch200m
Hammerhead V3 300m Titanium300m
MSRP
G40 Sonar Quartz Watch$333
Hammerhead V3 300m Titanium$559

Full specifications

Case

7 specs
Category
Field
Diver
Diameter
40mm
44mm
Thickness
12mm
13mm
Lug-to-Lug
46mm
44mm
Lug Width
20mm
22mm
Material
Stainless Steel
Titanium
Water Resistance
200m
300m

Crystal & Dial

4 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
CWC G40 Sonar Quartz Watch
Ti - Mosaic MOP
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Seiko NH35

Pricing

1 specs
MSRP
$333
$559
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