Side by side

Grand Seiko SBGR321vsLongines CONQUEST HERITAGE CENTRAL POWER RESERVE

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

SBGR321
Grand SeikoSBGR321
MSRP $5,200
CONQUEST HERITAGE CENTRAL POWER RESERVE
LonginesCONQUEST HERITAGE CENTRAL POWER RESERVE
MSRP $4,300

At a glance

10 of 29 specs differ
Diameter
SBGR32140mm
CONQUEST HERITAGE CENTRAL POWER RESERVE38mm
Power Reserve
SBGR32172h
CONQUEST HERITAGE CENTRAL POWER RESERVE40h
Water Resistance
SBGR321100m
CONQUEST HERITAGE CENTRAL POWER RESERVE50m
MSRP
SBGR321$5,200
CONQUEST HERITAGE CENTRAL POWER RESERVE$4,300

Full specifications

Case

6 specs
Category
Dress
Diameter
40mm
38mm
Thickness
13mm
12.3mm
Lug-to-Lug
46.6mm
45.6mm
Lug Width
20mm
19mm
Water Resistance
100m
50m

Crystal & Dial

1 specs
AR Coating
Yes
Inner

Movement

2 specs
Caliber
9S65
L896
Power Reserve
72h
40h

Pricing

1 specs
MSRP
$5,200
$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 SBGR321

Grand Seiko SBGR321 owners and reviewers widely praise its attractive design, compelling dimensions, and robust movement. The watch features sharp case lines with contrasting brushing and polishing, a 40mm steel case that provides presence without bulk, and 100m water resistance. Its sunburst blue dial, inspired by the dawn sky over Mount Iwate, showcases Grand Seiko's signature finishing on applied markers and hands, with a red-tipped seconds hand. The 9S65 automatic movement is noted for its precision, running within specifications, with one source reporting a +5 to -3 seconds a day rate and a 3-day power reserve. A blue rotor with a crimson rim, also inspired by Mount Iwate, is visible through the display caseback. On balance, owners and reviewers rate the Grand Seiko SBGR321 highly for its exceptional finishing and compelling blue dial design at its price point.

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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