Side by side

CWC G40 Sonar Quartz WatchvsSugess Seestern Vintage S407 600T

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
Seestern Vintage S407 600T
SugessSeestern Vintage S407 600T
MSRP $249

At a glance

12 of 29 specs differ
Diameter
G40 Sonar Quartz Watch40mm
Seestern Vintage S407 600T39mm
Power Reserve
G40 Sonar Quartz Watch40h
Seestern Vintage S407 600T40h
Water Resistance
G40 Sonar Quartz Watch200m
Seestern Vintage S407 600T600m
MSRP
G40 Sonar Quartz Watch$333
Seestern Vintage S407 600T$249

Full specifications

Case

5 specs
Category
Field
Diver
Diameter
40mm
39mm
Thickness
12mm
13.5mm
Lug-to-Lug
46mm
48mm
Water Resistance
200m
600m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
CWC G40 Sonar Quartz Watch
600T Black
Lume
Super-LumiNova
Tritium

Movement

3 specs
Caliber
NH35
Beat Rate
28,800 vph
3 vph
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$333
$249

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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.

Sugess Seestern Vintage S407 600T

Owners widely praise the Sugess Seestern Vintage S407 600T for its exceptional finishing, bracelet quality, and overall value at its price point. Reviewers and owners alike highlight the watch's fantastic looks and build quality, with one owner noting Seestern did a better job than the original inspiration. Some owners report a slight bezel back play and a clunky clasp, while others have no clasp complaints. Accuracy figures vary, with one owner seeing the watch run 2 seconds slow over 30 hours, and another noting a dial leaning slightly left. The watch measures 40mm wide, 14mm thick, and 48mm lug-to-lug, weighing 86g for the head and 163.4g total with the bracelet, leading some to find it heavy for wrists smaller than 7 inches. One owner questioned if the crown felt wobbly when winding or setting. On balance, owners rate the Sugess Seestern Vintage S407 600T highly for its outstanding build quality and aesthetic appeal relative to its cost.

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