Side by side

Grand Seiko STGK031vsLongines CONQUEST

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

STGK031
Grand SeikoSTGK031
MSRP $6,600
CONQUEST
LonginesCONQUEST
MSRP $4,750

At a glance

16 of 29 specs differ
Diameter
STGK03130mm
CONQUEST30mm
Power Reserve
STGK03150h
CONQUEST
Water Resistance
STGK031100m
CONQUEST100m
MSRP
STGK031$6,600
CONQUEST$4,750

Full specifications

Case

5 specs
Category
Dress
Thickness
10.5mm
9.7mm
Lug-to-Lug
36.2mm
37.8mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Black
White
Indices
Applied

Movement

6 specs
Caliber
9S27
L592.5
Beat Rate
28,800 vph
0 vph
Power Reserve
50h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$6,600
$4,750

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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.

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its excellent price-performance ratio, high-quality finishing, and versatile design, with many highlighting its comfortable wearability due to curved lugs. The smooth winding action and attractive dial colors are also frequently cited positives. However, reviewers and owners consistently note the bracelet's lack of on-the-go micro-adjustment, which can impact fit, and several find the lume to be weak. One owner reported the crown and guards rubbing against the wrist when typing. On balance, owners and reviewers rate the Longines CONQUEST highly for its impressive finishing and value, despite minor bracelet and lume drawbacks.

From video reviewers

The watch's wearable case size and dial work are highlighted as strengths. The bracelet's end-link fit is cited as a weakness.

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