Side by side

CWC G40 Sonar Quartz WatchvsSpinnaker Bradner

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
Bradner
SpinnakerBradner
MSRP $179
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.

Spinnaker Bradner

Owners widely praise the Spinnaker Bradner's vibrant dials and excellent lume on indices and bezel, with one owner noting comfortable wearability on a 7-inch wrist. Reviewers flag imprecise finishing on the minute ring and an inner bezel crown that rotates too easily, while some owners report the internal rotating bezel does not stay in position. The watch features a Seiko NH35 movement with a 41-hour power reserve and is priced around $390-$430 USD. On balance, owners and reviewers find the Spinnaker Bradner to be a fun, affordable diver, with its vibrant dials and strong lume being key selling points.

From video reviewers

The Spinnaker Atlantic Blue's reliable Seiko NH35 automatic movement is a key strength. The watch's lume performance is somewhat lacking, which may be a trade-off for some buyers. Reviewers disagree on the watch's bezel action, with one reviewer praising it as smooth and precise, while the other two do not mention it.

At a glance

13 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
Bradner42mm
Power Reserve
G40 Sonar Quartz Watch40h
Bradner40h
Water Resistance
G40 Sonar Quartz Watch200m
Bradner180m
MSRP
G40 Sonar Quartz Watch$333
Bradner$179

Full specifications

Case

7 specs
Category
Field
Diver
Diameter
40mm
42mm
Thickness
46mm
15mm
Lug-to-Lug
12mm
50mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
180m

Crystal & Dial

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

Movement

2 specs
Caliber
Seiko NH35
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$333
$179
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