Side by side

CWC G40 Sonar Quartz WatchvsGrand Seiko SBGW306

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

Add a watch
G40 Sonar Quartz Watch
CWCG40 Sonar Quartz Watch
MSRP $333
SBGW306
Grand SeikoSBGW306
MSRP $17,900
Buy from CWC ↗
Buy used on eBay ↗
Buy from Grand Seiko ↗
Buy used on eBay ↗

At a glance

13 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
SBGW30636.5mm
Power Reserve
G40 Sonar Quartz Watch40h
SBGW30672h
Water Resistance
G40 Sonar Quartz Watch200m
SBGW306100m
MSRP
G40 Sonar Quartz Watch$333
SBGW306$17,900

Full specifications

Case

7 specs
Category
Field
Dress
Diameter
40mm
36.5mm
Thickness
12mm
11.7mm
Lug-to-Lug
46mm
42.7mm
Lug Width
20mm
18mm
Material
Stainless Steel
Gold
Water Resistance
200m
100m

Crystal & Dial

2 specs
Dial Color
CWC G40 Sonar Quartz Watch
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
—
9S64
Type
Automatic
Manual
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$333
$17,900
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Boldr Ranger
Boldrmicro

Ranger

3 variantsRef. ranger-kopje
40mm·Automatic·200m WR
$299MSRP
—Used
anOrdain Model 1 Precious Metal
anOrdainmicro

Model 1 Precious Metal

3 variantsModel 1 Precious Metal
38mm·Manual
$1,905MSRP
—Used
Boldr Marine
Boldrmicro

Marine

2 variantsRef. marine-elewana
40mm·Automatic·200m WR
$439MSRP
—Used
anOrdain Model 2 Fumé
anOrdainmicro

Model 2 Fumé

6 variantsModel 2 Fumé
36mm·Manual
$1,905MSRP
—Used
Gruppo Gamma Field III
Gruppo Gammamicro

Field III

2 variantsRef. venturo-field-iii-black
40mm·Automatic·200m WR
$439MSRP
—Used
Garrick S7 Timepiece
Garrick

S7 Timepiece

5 variantsS7
38mm·Manual·100m WR
$9,525MSRP
—Used
Zelos Swordfish Field 38
Zelosmicro

Swordfish Field 38

2 watches · 35 variantsSwordfish
38mm·Automatic·200m WR
$399MSRP
—Used
NOMOS Glashütte Lux white gold
NOMOS Glashütte

Lux white gold

2 watches · 5 variantsLux
36mm·Manual
$27,500MSRP
—Used
All alternatives to the G40 Sonar Quartz Watch →All alternatives to the SBGW306 →
Explore the full catalog

Follow this matchup

Get a note when CWC G40 Sonar Quartz Watch vs Grand Seiko SBGW306 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

CWC G40 Subhunter Quartz WatchvsGrand Seiko SBGW306CWC G40 Quartz WatchvsGrand Seiko SBGW306Boldr RangervsGrand Seiko SBGW306Boldr MarinevsGrand Seiko SBGW306CWC G40 Sonar Quartz WatchvsanOrdain Model 1 Precious MetalanOrdain Model 2 FumévsCWC G40 Sonar Quartz Watch
Edit this comparisonAdd another watchExplore more 35–41mm watches