Side by side

Grand Seiko SLGA009vsZelos Helica

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

SLGA009
Grand SeikoSLGA009
MSRP $9,800
Helica
ZelosHelica
MSRP $499

At a glance

12 of 29 specs differ
Diameter
SLGA00940mm
Helica39mm
Power Reserve
SLGA009120h
Helica40h
Water Resistance
SLGA009100m
Helica100m
MSRP
SLGA009$9,800
Helica$499

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
40mm
39mm
Thickness
11.8mm
10.5mm
Lug-to-Lug
47.9mm
39mm
Lug Width
22mm
20mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

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

Movement

3 specs
Caliber
9RA2
Miyota 9015
Type
Spring Drive
Automatic
Power Reserve
120h
40h

Pricing

1 specs
MSRP
$9,800
$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 SLGA009

The Grand Seiko SLGA009 "White Birch II" is praised for its Spring Drive Caliber 9RA2 movement, offering exceptional accuracy of ±0.5 seconds per day and a 120-hour power reserve. Reviewers highlight its refined dial texture, inspired by Shinshu forests, and the Series 9 design with a frost-finished movement. The watch features a 40mm stainless steel case and a power reserve indicator on the movement bridge. However, its price of $8,600 to $9,100 USD is noted as relatively expensive, reflecting Grand Seiko's increasing price points. Overall, reviewers consider the Grand Seiko SLGA009 a highly refined timepiece, with its advanced Spring Drive movement and aesthetic improvements being key strengths.

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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