Side by side

Grand Seiko STGK031vsZelos Skyraider 2

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

STGK031
Grand SeikoSTGK031
MSRP $6,600
Skyraider 2
ZelosSkyraider 2
MSRP $2,399

At a glance

12 of 29 specs differ
Diameter
STGK03130mm
Skyraider 242mm
Power Reserve
STGK03150h
Skyraider 240h
Water Resistance
STGK031100m
Skyraider 250m
MSRP
STGK031$6,600
Skyraider 2$2,399

Full specifications

Case

6 specs
Category
Dress
Skeleton
Diameter
30mm
42mm
Lug-to-Lug
36.2mm
48.5mm
Lug Width
15mm
22mm
Material
Stainless Steel
Mokume Gane
Water Resistance
100m
50m

Crystal & Dial

2 specs
AR Coating
Yes
Inner
Dial Color
Black
Mokume

Movement

3 specs
Caliber
9S27
ETA 6498-1 Élaboré
Type
Automatic
Manual
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$6,600
$2,399

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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 STGK031

Grand Seiko STGK031 owners widely praise its subtle, light pink dial that shifts to appear white or silver depending on lighting, its refined 30mm case size, and its simple elegance. Some find the 30mm sizing perfect for wearability, with one owner noting it is ideal for those who find 38mm watches too large. The Zaratsu polishing is also a noted strength. However, the Calibre 9S27 movement has a 50-hour power reserve and an accuracy range of +8 to -3 seconds per day, which some consider modest for the price. On balance, owners and reviewers rate the Grand Seiko STGK031 highly for its versatile dial and refined 30mm case.

From video reviewers

The 50-hour power reserve of the Calibre 9S27 movement is a shared strength. The 36mm lug-to-lug measurement is a weakness. Reviewers disagreed on the premium feel of the polished stainless steel case and bracelet compared to Zaratsu polishing.

Zelos Skyraider 2

The Zelos Skyraider 2 is praised for its value, particularly offering unique dial materials like meteorite at a fraction of luxury prices, and its bronze case is noted for a warm glow. Reviewers and owners highlight the Flieger-inspired design and the use of a manual-wind ETA 6498 movement, with BGW9 and C3 Super-LumiNova lume. Some owners find the skeletonized variant ideal for style over everyday legibility, while others note the brand's past designs have sometimes been hard to read or bulky. The Zelos Skyraider 2 is available in various materials and dial options, with prices ranging from $699 to $1,399. On balance, owners and reviewers rate the Zelos Skyraider 2 highly for its distinctive materials and design at a competitive price point.

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