Side by side

Grand Seiko STGK031vsLongines CONQUEST HERITAGE CENTRAL POWER RESERVE

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

STGK031
Grand SeikoSTGK031
MSRP $6,600
CONQUEST HERITAGE CENTRAL POWER RESERVE
LonginesCONQUEST HERITAGE CENTRAL POWER RESERVE
MSRP $4,300

At a glance

10 of 29 specs differ
Diameter
STGK03130mm
CONQUEST HERITAGE CENTRAL POWER RESERVE38mm
Power Reserve
STGK03150h
CONQUEST HERITAGE CENTRAL POWER RESERVE40h
Water Resistance
STGK031100m
CONQUEST HERITAGE CENTRAL POWER RESERVE50m
MSRP
STGK031$6,600
CONQUEST HERITAGE CENTRAL POWER RESERVE$4,300

Full specifications

Case

6 specs
Category
Dress
Diameter
30mm
38mm
Thickness
10.5mm
12.3mm
Lug-to-Lug
36.2mm
45.6mm
Lug Width
15mm
19mm
Water Resistance
100m
50m

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

2 specs
Caliber
9S27
L896
Power Reserve
50h
40h

Pricing

1 specs
MSRP
$6,600
$4,300

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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 HERITAGE CENTRAL POWER RESERVE

The Longines Conquest Heritage Central Power Reserve is widely praised for its beautiful, timeless, 1959-inspired dial and unique central power reserve indicator, with owners considering it a top dress watch in its price segment. Reviewers highlight its balanced layout and contemporary 38mm size, while some owners find the short lugs contribute to a comfortable wear. The watch features a modern 72-hour power reserve movement and is priced at $3,800. One reviewer notes the lugs are not curved enough, potentially creating a gap with the strap, though owners report the alligator strap softens with wear and some find the watch slightly chunky. A potential frustration for some owners is the power reserve indicator not always resetting to the same position when fully wound. On balance, owners and reviewers rate the Longines Conquest Heritage Central Power Reserve highly for its handsome vintage aesthetic and unique power reserve complication at an appropriate price.

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