Side by side

Grand Seiko SBGX355vsSpinnaker Dumas Automatic

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

SBGX355
Grand SeikoSBGX355
MSRP $4,100
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239

At a glance

12 of 29 specs differ
Diameter
SBGX35537mm
Dumas Automatic44mm
Power Reserve
SBGX35540h
Dumas Automatic40h
Water Resistance
SBGX355100m
Dumas Automatic300m
MSRP
SBGX355$4,100
Dumas Automatic$239

Full specifications

Case

7 specs
Category
Dress
Diver
Diameter
37mm
44mm
Thickness
10.6mm
15mm
Lug-to-Lug
44.6mm
48mm
Lug Width
19mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Blue

Movement

2 specs
Caliber
9F62
SII NH35A
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$4,100
$239

Follow this matchup

Get a note when Grand Seiko SBGX355 vs Spinnaker Dumas Automatic gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Grand Seiko SBGX355

The Grand Seiko SBGX355 is widely praised for its beautiful dial, excellent finishing, and perfect 37mm size. Owners report unparalleled accuracy from the 9F62 quartz movement, rated to within 10 seconds per year. The high-intensity titanium case and 100m water resistance are noted features. Some consider the SBGX355 a "baby Snowflake" and a more accessible alternative to other models. Overall, owners and reviewers rate the Grand Seiko SBGX355 highly for its iconic Snowflake dial and exceptional quartz accuracy in a wearable 37mm case.

From video reviewers

The titanium case finishing is a significant strength. The deployant clasp is noted as prone to rattle. Reviewers disagree on the ideal case size for everyday wear.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

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.

Adjacent matchups

People also compared

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