Side by side

Grand Seiko SBGX355vsStudio Underd0g Full Moon

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

SBGX355
Grand SeikoSBGX355
MSRP $4,100
Full Moon
Studio Underd0gFull Moon
MSRP $800

At a glance

12 of 29 specs differ
Diameter
SBGX35537mm
Full Moon39.5mm
Power Reserve
SBGX35540h
Full Moon40h
Water Resistance
SBGX355100m
Full Moon
MSRP
SBGX355$4,100
Full Moon$800

Full specifications

Case

7 specs
Category
Dress
Casual
Diameter
37mm
39.5mm
Thickness
10.6mm
Lug-to-Lug
44.6mm
Lug Width
19mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Standard

Movement

2 specs
Caliber
9F62
Type
Quartz
Manual

Pricing

1 specs
MSRP
$4,100
$800

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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.

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.

Studio Underd0g Full Moon

Owners widely praise the Studio Underd0g Full Moon's harmonious creamy dial and its 37mm case, which fits flawlessly. The innovative sapphire disc with numerals is a highlight, though two visible screws holding it are noted as a minor aesthetic drawback. Some owners find the watch overpriced, while others see value in the upgraded Sellita movement under $1k. Lume is surprisingly good, and the included NATO strap is preferred by some over the leather. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day. On balance, owners rate the Studio Underd0g Full Moon highly for its versatile dial and well-fitting case at the price point.

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