Side by side

Grand Seiko SLGA009vsZelos Hammerhead 43 Field

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

SLGA009
Grand SeikoSLGA009
MSRP $9,800
Hammerhead 43 Field
ZelosHammerhead 43 Field
MSRP $399

At a glance

13 of 29 specs differ
Diameter
SLGA00940mm
Hammerhead 43 Field43mm
Power Reserve
SLGA009120h
Hammerhead 43 Field40h
Water Resistance
SLGA009100m
Hammerhead 43 Field300m
MSRP
SLGA009$9,800
Hammerhead 43 Field$399

Full specifications

Case

6 specs
Category
Dress
Field
Diameter
40mm
43mm
Thickness
11.8mm
13mm
Lug-to-Lug
47.9mm
43mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
AR Coating
Yes
Inner
Dial Color
Black
Purple

Movement

3 specs
Caliber
9RA2
Seiko NH38
Type
Spring Drive
Automatic
Power Reserve
120h
40h

Pricing

1 specs
MSRP
$9,800
$399

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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 Hammerhead 43 Field

The Zelos Hammerhead 43 Field is praised for its unique bronze case patina potential, masculine angular design, and fantastic lume. Owners also highlight the lovely Mosaic Ember and purple agate dials. However, some owners feel the 43mm case wears large, suited for wrists 7.5 inches and up, and a reviewer notes its substantial 17mm thickness. The rubber strap is disliked for making the watch feel top-heavy, and the date window is considered tiny and hard to see. Some owners express disappointment with the NH movement. Overall, owners and reviewers rate the Zelos Hammerhead 43 Field well for its distinctive design and dial appeal at its price point.

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