Side by side

Citizen Atomic Perpetual A-TvsLongines FLAGSHIP HERITAGE

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

FLAGSHIP HERITAGE
LonginesFLAGSHIP HERITAGE
MSRP $2,150

At a glance

20 of 29 specs differ
Diameter
Atomic Perpetual A-T41mm
FLAGSHIP HERITAGE38.5mm
Power Reserve
Atomic Perpetual A-T40h
FLAGSHIP HERITAGE
Water Resistance
Atomic Perpetual A-T200m
FLAGSHIP HERITAGE30m
MSRP
Atomic Perpetual A-T
FLAGSHIP HERITAGE$2,150

Full specifications

Case

8 specs
Category
Pilot
Dress
Diameter
41mm
38.5mm
Thickness
12mm
10.3mm
Lug-to-Lug
46mm
47mm
Lug Width
20mm
19mm
Finish
Brushed and polished
Water Resistance
200m
30m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Dial Color
Blue
Anthracite
Indices
Applied

Movement

7 specs
Caliber
H800
L615.3
Type
Solar
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$2,150

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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.

Citizen Atomic Perpetual A-T

Owners widely praise the Citizen Atomic Perpetual A-T for its handsome appearance, solid fit and finish, comfortable bracelet, and intuitive world time function. Its perpetual calendar and atomic timekeeping are highlighted as major conveniences, maintaining accuracy within 0.5 seconds even without syncing, and owners appreciate its "set & forget" nature and solar charging. The watch features a modest, stylish blue dial with delicate design details and a clutter-free layout, along with high water resistance without a screw-down crown and light titanium construction. Some find the dial unnecessarily busy, and its time zone functionality is noted as less useful outside the US, with atomic sync being less compelling below the equator. Accuracy is reported as +/-15 seconds per month if not syncing, but +/-0 seconds if it syncs via radio signal. Some find the watch a bit on the large side.

Longines FLAGSHIP HERITAGE

The Longines Flagship Heritage is widely praised for its impeccable finishing, timeless vintage-inspired design, and exceptional value, with reviewers highlighting its elegant cream dial with gilt markers, dauphine hands, and applied logo, as well as its comfortable 38.5mm case size. Owners appreciate its refined aesthetic, suitable for dressed occasions and as a first watch, and some note the special design on the case back. However, its 42-hour power reserve and 12.4mm thickness are flagged as drawbacks, with one owner suspecting an issue with the self-winding mechanism. Overall, owners and reviewers rate the Longines Flagship Heritage highly for its elegant vintage design and exceptional value at its price point.

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