Side by side

Grand Seiko SLGB003vsGrand Seiko STGK031

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

SLGB003
Grand SeikoSLGB003
MSRP $11,400
STGK031
Grand SeikoSTGK031
MSRP $6,600

At a glance

9 of 29 specs differ
Diameter
SLGB00337mm
STGK03130mm
Power Reserve
SLGB00372h
STGK03150h
Water Resistance
SLGB003100m
STGK031100m
MSRP
SLGB003$11,400
STGK031$6,600

Full specifications

Case

5 specs
Diameter
37mm
30mm
Thickness
11.4mm
10.5mm
Lug-to-Lug
44.3mm
36.2mm
Lug Width
20mm
15mm
Material
Titanium
Stainless Steel

Movement

3 specs
Caliber
9RB2
9S27
Type
Spring Drive
Automatic
Power Reserve
72h
50h

Pricing

1 specs
MSRP
$11,400
$6,600

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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 SLGB003

Grand Seiko SLGB003 owners widely praise its lightness and comfort, with a dial that offers a shifting character in different lighting conditions. Reviewers note its compact case size enhances wearability and versatility across wrist sizes. However, one owner found the dial underwhelming, and another reported a date disc issue with lower numbers not changing correctly. Some question the value proposition at around $10,000, citing the bracelet and dial as potential drawbacks, while others highlight the movement and smaller dimensions as significant positives. On balance, owners rate the Grand Seiko SLGB003 highly for its movement and compact dimensions, despite some reservations about the dial and bracelet.

From video reviewers

The watch's exceptional accuracy is a notable strength, with both reviewers highlighting its precise timekeeping. A weakness is the relatively high price point compared to other Grand Seiko models. Reviewers disagree on the ideal case size, with one reviewer noting it's relatively small at 37mm, while the other doesn't mention case size as a concern.

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.

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