Side by side

Grand Seiko SBGX355vsZelos Helica

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

SBGX355
Grand SeikoSBGX355
MSRP $4,100
Helica
ZelosHelica
MSRP $499

At a glance

11 of 29 specs differ
Diameter
SBGX35537mm
Helica39mm
Power Reserve
SBGX35540h
Helica40h
Water Resistance
SBGX355100m
Helica100m
MSRP
SBGX355$4,100
Helica$499

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
37mm
39mm
Thickness
10.6mm
10.5mm
Lug-to-Lug
44.6mm
39mm
Lug Width
19mm
20mm
Material
Titanium
316L Stainless Steel

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
39 - Wave MOP

Movement

2 specs
Caliber
9F62
Miyota 9015
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$4,100
$499

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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.

Zelos Helica

Owners widely praise the Zelos Helica for its stunning, often color-shifting dials, with specific mentions of the MoP, slate grey, 'Steel Blue', and red opal variants being particularly captivating and artful. The 39mm case size is noted as fitting well on smaller wrists, and the overall build quality and finishing for the price are frequently highlighted as impressive, with one owner calling it "a lot of watch for the price." Some owners appreciate the novel bracelet designs and full lume dials, while others find the bracelet and clasp edges sharp or the clasp lacking on-the-fly adjustment. Opinions on the date window are mixed, with one owner disliking it. The Zelos Helica Moonphase was considered cluttered by one owner, and its $1K USD price point was felt to be steep by another, though popular variants sold out rapidly. Overall, owners rate the Zelos Helica highly for its striking dial designs and impressive value proposition.

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